diff --git a/server.log b/server.log
index 22ca4dc..951c102 100644
--- a/server.log
+++ b/server.log
@@ -1,98 +1,549 @@
-INFO:     Started server process [70935]
+INFO:     Started server process [71515]
 INFO:     Waiting for application startup.
-2026-02-20 20:04:15,011 - fan_controller - INFO - Loaded config from /home/devmatrix/projects/fan-controller-v2/data/config.json
-2026-02-20 20:04:15,011 - __main__ - INFO - Auto-starting fan control (enabled in config)
-2026-02-20 20:04:15,162 - fan_controller - INFO - Connected to IPMI at 192.168.5.191
-2026-02-20 20:04:15,162 - fan_controller - INFO - HTTP sensor client initialized for http://192.168.5.200:8888
-2026-02-20 20:04:15,163 - fan_controller - INFO - IPMI Controller service started
+2026-02-20 20:06:54,388 - fan_controller - INFO - Loaded config from /home/devmatrix/projects/fan-controller-v2/data/config.json
+2026-02-20 20:06:54,388 - __main__ - INFO - Auto-starting fan control (enabled in config)
+2026-02-20 20:06:54,546 - fan_controller - INFO - Connected to IPMI at 192.168.5.191
+2026-02-20 20:06:54,546 - fan_controller - INFO - HTTP sensor client initialized for http://192.168.5.200:8888
+2026-02-20 20:06:54,547 - fan_controller - INFO - IPMI Controller service started
 INFO:     Application startup complete.
 INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)
-2026-02-20 20:04:15,314 - fan_controller - INFO - Manual fan control enabled
-INFO:     192.168.5.30:62669 - "GET /api/status HTTP/1.1" 401 Unauthorized
-INFO:     192.168.5.30:62669 - "GET /login HTTP/1.1" 200 OK
-INFO:     192.168.5.30:62669 - "GET /icons/favicon.svg HTTP/1.1" 304 Not Modified
-2026-02-20 20:04:20,942 - fan_controller - INFO - Fan 0xff speed set to 27%
-2026-02-20 20:04:20,942 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
-2026-02-20 20:04:36,853 - fan_controller - INFO - Fan 0xff speed set to 31%
-2026-02-20 20:04:36,853 - fan_controller - INFO - All fans set to 31% (Temp 38.0°C)
-INFO:     127.0.0.1:34870 - "GET /api/status HTTP/1.1" 401 Unauthorized
-2026-02-20 20:04:51,781 - fan_controller - INFO - Fan 0xff speed set to 27%
-2026-02-20 20:04:51,781 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
-2026-02-20 20:05:07,261 - fan_controller - INFO - Fan 0xff speed set to 25%
-2026-02-20 20:05:07,261 - fan_controller - INFO - All fans set to 25% (Temp 35.0°C)
-INFO:     192.168.5.30:65404 - "GET /login HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /favicon.ico HTTP/1.1" 200 OK
+INFO:     192.168.5.30:61891 - "GET /api/status HTTP/1.1" 401 Unauthorized
+2026-02-20 20:06:54,707 - fan_controller - INFO - Manual fan control enabled
+INFO:     192.168.5.30:61891 - "GET /login HTTP/1.1" 200 OK
+INFO:     192.168.5.30:61891 - "GET /icons/favicon.svg HTTP/1.1" 304 Not Modified
+2026-02-20 20:06:59,911 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:06:59,911 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
 /home/devmatrix/projects/fan-controller-v2/web_server.py:153: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   self._sessions[token] = (username, datetime.utcnow() + timedelta(days=7))
-INFO:     192.168.5.30:65404 - "POST /api/auth/login HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET / HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /icons/sun.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:52052 - "POST /api/auth/login HTTP/1.1" 200 OK
+INFO:     192.168.5.30:52052 - "GET / HTTP/1.1" 200 OK
+INFO:     192.168.5.30:52052 - "GET /icons/auto-mode.svg HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:58005 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:64268 - "GET /icons/lock-closed.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:63723 - "GET /icons/auto-mode.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:65404 - "GET /icons/thermometer.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:64382 - "GET /icons/server-stack.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:50712 - "GET /icons/arrow-right-on-rectangle.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:58005 - "GET /icons/list-bullet.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:63723 - "GET /icons/chart-bar.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:64268 - "GET /icons/adjustments-horizontal.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:65404 - "GET /icons/document-text.svg HTTP/1.1" 304 Not Modified
-INFO:     192.168.5.30:65404 - "GET /favicon.ico HTTP/1.1" 200 OK
-2026-02-20 20:05:22,464 - fan_controller - INFO - Fan 0xff speed set to 27%
-2026-02-20 20:05:22,464 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+INFO:     192.168.5.30:55325 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /icons/thermometer.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:63188 - "GET /favicon.ico HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:07:15,453 - fan_controller - INFO - Fan 0xff speed set to 25%
+2026-02-20 20:07:15,453 - fan_controller - INFO - All fans set to 25% (Temp 35.0°C)
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     127.0.0.1:50858 - "GET /icons/auto-mode.svg HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-2026-02-20 20:05:53,251 - fan_controller - INFO - Fan 0xff speed set to 29%
-2026-02-20 20:05:53,251 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:07:30,915 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:07:30,915 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-2026-02-20 20:06:08,235 - fan_controller - INFO - Fan 0xff speed set to 25%
-2026-02-20 20:06:08,235 - fan_controller - INFO - All fans set to 25% (Temp 35.0°C)
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:07:45,964 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:07:45,965 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-2026-02-20 20:06:23,620 - fan_controller - INFO - Fan 0xff speed set to 29%
-2026-02-20 20:06:23,620 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
 /home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
   if datetime.utcnow() > expiry:
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
-INFO:     192.168.5.30:65404 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:63188 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:09:03,867 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:09:03,867 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:09:19,798 - fan_controller - INFO - Fan 0xff speed set to 31%
+2026-02-20 20:09:19,799 - fan_controller - INFO - All fans set to 31% (Temp 38.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:55296 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:09:35,346 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:09:35,347 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:09:50,823 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:09:50,823 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:10:06,006 - fan_controller - INFO - Fan 0xff speed set to 31%
+2026-02-20 20:10:06,006 - fan_controller - INFO - All fans set to 31% (Temp 38.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:57942 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:10:54,206 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:10:54,206 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:64073 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:13:15,599 - fan_controller - INFO - Fan 0xff speed set to 25%
+2026-02-20 20:13:15,600 - fan_controller - INFO - All fans set to 25% (Temp 35.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:13:32,024 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:13:32,025 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:13:48,155 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:13:48,156 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:14:04,773 - fan_controller - INFO - Fan 0xff speed set to 25%
+2026-02-20 20:14:04,774 - fan_controller - INFO - All fans set to 25% (Temp 35.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:14:20,306 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:14:20,307 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:14:36,209 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:14:36,209 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:14:51,615 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:14:51,616 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:15:22,579 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:15:22,579 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:15:37,470 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:15:37,470 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET / HTTP/1.1" 200 OK
+INFO:     192.168.5.30:50577 - "GET /icons/favicon.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:50577 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:60159 - "GET /icons/lock-closed.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:57390 - "GET /icons/auto-mode.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:59075 - "GET /icons/sun.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:55085 - "GET /icons/server-stack.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:51598 - "GET /icons/arrow-right-on-rectangle.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:50577 - "GET /icons/thermometer.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:57390 - "GET /icons/adjustments-horizontal.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:60159 - "GET /icons/list-bullet.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:51598 - "GET /icons/chart-bar.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:59075 - "GET /icons/document-text.svg HTTP/1.1" 304 Not Modified
+INFO:     192.168.5.30:59075 - "GET /favicon.ico HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:15:52,508 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:15:52,508 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:16:39,127 - fan_controller - INFO - Fan 0xff speed set to 25%
+2026-02-20 20:16:39,127 - fan_controller - INFO - All fans set to 25% (Temp 35.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:16:55,091 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:16:55,092 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:17:11,182 - fan_controller - INFO - Fan 0xff speed set to 25%
+2026-02-20 20:17:11,182 - fan_controller - INFO - All fans set to 25% (Temp 35.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:17:26,052 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:17:26,052 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:17:41,039 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:17:41,040 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:18:13,111 - fan_controller - INFO - Fan 0xff speed set to 31%
+2026-02-20 20:18:13,111 - fan_controller - INFO - All fans set to 31% (Temp 38.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:18:28,096 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:18:28,097 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:18:44,743 - fan_controller - INFO - Fan 0xff speed set to 29%
+2026-02-20 20:18:44,743 - fan_controller - INFO - All fans set to 29% (Temp 37.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+2026-02-20 20:19:00,200 - fan_controller - INFO - Fan 0xff speed set to 27%
+2026-02-20 20:19:00,201 - fan_controller - INFO - All fans set to 27% (Temp 36.0°C)
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+/home/devmatrix/projects/fan-controller-v2/web_server.py:160: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
+  if datetime.utcnow() > expiry:
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
+INFO:     192.168.5.30:59075 - "GET /api/status HTTP/1.1" 200 OK
diff --git a/web_server.py b/web_server.py
index a7282cc..d478ca4 100644
--- a/web_server.py
+++ b/web_server.py
@@ -102,7 +102,8 @@ class FanGroupCreate(BaseModel):
 
 class ManualSpeedRequest(BaseModel):
     speed: int = Field(..., ge=0, le=100)
-    fan_id: str = "0xff"
+    fan_id: Optional[str] = "0xff"
+    group: Optional[str] = None
 
 class IdentifyRequest(BaseModel):
     fan_id: str
@@ -554,7 +555,7 @@ def get_html(theme="dark"):
                 <button class="tab active" onclick="showTab('ipmi')"><span class="icon-svg"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5"><rect x="2" y="3" width="20" height="6" rx="2"/><rect x="2" y="11" width="20" height="6" rx="2"/><rect x="2" y="19" width="20" height="3" rx="1.5"/></svg></span>IPMI</button>
                 <button class="tab" onclick="showTab('http')"><span class="icon-svg"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5"><circle cx="12" cy="12" r="10"/><path d="M2 12h20M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z"/></svg></span>HTTP</button>
                 <button class="tab" onclick="showTab('control')"><span class="icon-svg"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5"><circle cx="12" cy="12" r="3"/><path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"/></svg></span>Control</button>
-                <button class="tab" onclick="showTab('fans')"><img src="/icons/favicon.svg" class="icon-svg" alt=""> Fans</button>
+                <button class="tab" onclick="showTab('fans')"><img src="/icons/favicon.svg" class="icon-svg" alt=""> Fan Groups</button>
                 <button class="tab" onclick="showTab('curves')"><img src="/icons/chart-bar.svg" class="icon-svg" alt=""> Curves</button>
                 <button class="tab" onclick="showTab('logs')"><img src="/icons/document-text.svg" class="icon-svg" alt=""> Logs</button>
             </div>
@@ -646,15 +647,21 @@ def get_html(theme="dark"):
             </div>
             
             <div id="tab-fans" class="tab-content">
-                <h3>Fan Configuration</h3>
+                <h3>Fan Groups Management</h3>
+                <div id="fan-groups-list" style="margin-bottom:20px;">
+                    <p style="color:var(--text-secondary);">Loading fan groups...</p>
+                </div>
+                <h4>Individual Fan Configuration</h4>
                 <div id="fan-config-list">
                     <p style="color:var(--text-secondary);">Connect to IPMI to see fans</p>
                 </div>
-                <h4 style="margin-top:20px;">Fan Groups</h4>
-                <div id="fan-groups-list">
-                    <p style="color:var(--text-secondary);">No groups defined</p>
+                
+                <h4 style="margin-top:20px;">Quick Actions</h4>
+                <div style="display:flex;gap:10px;flex-wrap:wrap;">
+                    <button class="secondary" onclick="setAllFans(50)">Set All 50%</button>
+                    <button class="secondary" onclick="setAllFans(75)">Set All 75%</button>
+                    <button class="secondary" onclick="setAllFans(100)">Set All 100%</button>
                 </div>
-                <button class="secondary" onclick="showGroupModal()">+ Add Group</button>
             </div>
             
             <div id="tab-curves" class="tab-content">
@@ -697,6 +704,44 @@ def get_html(theme="dark"):
         </div>
     </div>
     
+    <!-- Fan Group Modal -->
+    <div class="modal" id="group-modal">
+        <div class="modal-content">
+            <h3>Manage Fan Group</h3>
+            <div class="form-group">
+                <label>Group Name</label>
+                <input type="text" id="group-name" placeholder="e.g., CPU Fans, Rear Fans">
+            </div>
+            <div class="form-group">
+                <label>Select Fans for Group</label>
+                <div id="group-fan-selection" style="max-height:200px;overflow-y:auto;">
+                    <p style="color:var(--text-secondary);">Connect to IPMI to see fans</p>
+                </div>
+            </div>
+            <div style="display:flex;gap:10px;margin-top:15px;">
+                <button class="secondary" style="flex:1;" onclick="hideModal('group-modal')">Cancel</button>
+                <button class="primary" style="flex:1;" onclick="saveGroup()">Save Group</button>
+            </div>
+        </div>
+    </div>
+    
+    <!-- Per-Fan Speed Modal -->
+    <div class="modal" id="fan-speed-modal">
+        <div class="modal-content">
+            <h3>Set Fan Speed</h3>
+            <div id="fan-speed-target" style="margin-bottom:15px;font-weight:bold;"></div>
+            <div class="form-group">
+                <label>Speed: <span id="fan-speed-val">50%</span></label>
+                <input type="range" id="fan-speed-slider" min="0" max="100" value="50" 
+                       oninput="document.getElementById('fan-speed-val').textContent = this.value + '%'">
+            </div>
+            <div style="display:flex;gap:10px;margin-top:15px;">
+                <button class="secondary" style="flex:1;" onclick="hideModal('fan-speed-modal')">Cancel</button>
+                <button class="primary" style="flex:1;" onclick="applyFanSpeed()">Apply</button>
+            </div>
+        </div>
+    </div>
+    
     <script>
         let currentStatus = {{}};
         let currentConfig = {{}};
@@ -706,7 +751,7 @@ def get_html(theme="dark"):
             const current = localStorage.getItem('theme') || 'dark';
             const next = current === 'dark' ? 'light' : 'dark';
             localStorage.setItem('theme', next);
-            location.reload();
+            window.location.href = window.location.pathname + '?theme=' + next;
         }}
         
         // Load saved theme
@@ -782,6 +827,57 @@ def get_html(theme="dark"):
             // Fan grid
             const fans = currentStatus.fans || [];
             const fanConfigs = currentStatus.config?.fans || {{}};
+            const fanGroups = currentStatus.config?.fan_groups || {{}};
+            
+            // Update Fan Groups tab
+            const fanGroupsList = document.getElementById('fan-groups-list');
+            if (Object.keys(fanGroups).length === 0) {{
+                fanGroupsList.innerHTML = '<p style="color:var(--text-secondary);">No groups defined. Groups let you control multiple fans together.</p>' +
+                    '<button class="secondary" onclick="showGroupModal()">+ Create First Group</button>';
+            }} else {{
+                fanGroupsList.innerHTML = Object.entries(fanGroups).map(([name, group]) => {{
+                    const fanCount = group.fan_ids?.length || 0;
+                    return `<div class="fan-card" style="margin-bottom:10px;">
+                        <div style="display:flex;justify-content:space-between;align-items:center;">
+                            <div>
+                                <div class="fan-name">${{name}}</div>
+                                <div class="fan-info">${{fanCount}} fan${{fanCount !== 1 ? 's' : ''}}</div>
+                            </div>
+                            <div style="display:flex;gap:5px;">
+                                <button class="secondary small" onclick="showFanSpeedModal('${{name}}', true)">Set Speed</button>
+                                <button class="secondary small" onclick="showGroupModal('${{name}}')">Edit</button>
+                                <button class="danger small" onclick="deleteGroup('${{name}}')">Delete</button>
+                            </div>
+                        </div>
+                    </div>`;
+                }}).join('') + '<button class="secondary" onclick="showGroupModal()" style="margin-top:10px;">+ Add Group</button>';
+            }}
+            
+            // Update Individual Fan Config
+            const fanConfigList = document.getElementById('fan-config-list');
+            if (fans.length === 0) {{
+                fanConfigList.innerHTML = '<p style="color:var(--text-secondary);">Connect to IPMI to see fans</p>';
+            }} else {{
+                fanConfigList.innerHTML = fans.map(f => {{
+                    const cfg = fanConfigs[f.fan_id] || {{}};
+                    const name = cfg.name || `Fan ${{f.fan_number}}`;
+                    const group = Object.entries(fanGroups).find(([n, g]) => g.fan_ids?.includes(f.fan_id));
+                    const groupName = group ? group[0] : 'No group';
+                    return `<div class="fan-card" style="margin-bottom:10px;">
+                        <div style="display:flex;justify-content:space-between;align-items:center;">
+                            <div>
+                                <div class="fan-name">${{name}}</div>
+                                <div class="fan-info">${{f.speed_rpm || 0}} RPM • ${{f.speed_percent || 0}}% • Group: ${{groupName}}</div>
+                            </div>
+                            <div style="display:flex;gap:5px;">
+                                <button class="secondary small" onclick="showFanSpeedModal('${{f.fan_id}}', false)">Set Speed</button>
+                                <button class="secondary small" onclick="identifyFan('${{f.fan_id}}')">Identify</button>
+                            </div>
+                        </div>
+                    </div>`;
+                }}).join('');
+            }}
+            
             const fanGrid = document.getElementById('fan-grid');
             if (fans.length > 0) {{
                 fanGrid.innerHTML = fans.map(f => {{
@@ -940,6 +1036,118 @@ def get_html(theme="dark"):
             const res = await api('/api/fans/stop-identify', {{method: 'POST'}});
             log('Identify mode stopped');
             hideModal('identify-modal');
+            fetchStatus();
+        }}
+        
+        // Fan Group Management
+        let currentFanSpeedTarget = null;
+        
+        function showGroupModal(groupName = null) {{
+            const fans = currentStatus.fans || [];
+            const container = document.getElementById('group-fan-selection');
+            
+            if (fans.length === 0) {{
+                container.innerHTML = '<p style="color:var(--text-secondary);">No fans available. Connect to IPMI first.</p>';
+            }} else {{
+                const fanConfigs = currentStatus.config?.fans || {{}};
+                container.innerHTML = fans.map(f => {{
+                    const cfg = fanConfigs[f.fan_id] || {{}};
+                    const name = cfg.name || `Fan ${{f.fan_number}}`;
+                    return `<label style="display:block;margin:5px 0;cursor:pointer;">
+                        <input type="checkbox" value="${{f.fan_id}}" class="group-fan-checkbox"> ${{name}} (${{f.fan_id}})
+                    </label>`;
+                }}).join('');
+            }}
+            
+            document.getElementById('group-name').value = groupName || '';
+            showModal('group-modal');
+        }}
+        
+        async function saveGroup() {{
+            const name = document.getElementById('group-name').value.trim();
+            if (!name) {{
+                log('Group name required', 'error');
+                return;
+            }}
+            
+            const fanIds = Array.from(document.querySelectorAll('.group-fan-checkbox:checked')).map(cb => cb.value);
+            if (fanIds.length === 0) {{
+                log('Select at least one fan', 'error');
+                return;
+            }}
+            
+            const res = await api('/api/fans/groups', {{
+                method: 'POST',
+                body: JSON.stringify({{name, fan_ids: fanIds}})
+            }});
+            
+            const data = await res.json();
+            if (data.success) {{
+                log(`Group "${{name}}" saved`, 'success');
+                hideModal('group-modal');
+                fetchStatus();
+            }} else {{
+                log('Failed: ' + data.error, 'error');
+            }}
+        }}
+        
+        function showFanSpeedModal(target, isGroup = false) {{
+            currentFanSpeedTarget = {{target, isGroup}};
+            document.getElementById('fan-speed-target').textContent = `Setting speed for: ${{target}}`;
+            document.getElementById('fan-speed-slider').value = 50;
+            document.getElementById('fan-speed-val').textContent = '50%';
+            showModal('fan-speed-modal');
+        }}
+        
+        async function applyFanSpeed() {{
+            const speed = parseInt(document.getElementById('fan-speed-slider').value);
+            const {{target, isGroup}} = currentFanSpeedTarget;
+            
+            const res = await api('/api/control/manual', {{
+                method: 'POST',
+                body: JSON.stringify({{speed, fan_id: isGroup ? null : target, group: isGroup ? target : null}})
+            }});
+            
+            const data = await res.json();
+            if (data.success) {{
+                log(`${{isGroup ? 'Group' : 'Fan'}} "${{target}}" set to ${{speed}}%`, 'success');
+                hideModal('fan-speed-modal');
+                fetchStatus();
+            }} else {{
+                log('Failed: ' + data.error, 'error');
+            }}
+        }}
+        
+        async function setAllFans(speed) {{
+            const res = await api('/api/control/manual', {{
+                method: 'POST',
+                body: JSON.stringify({{speed, fan_id: '0xff'}})
+            }});
+            
+            const data = await res.json();
+            if (data.success) {{
+                log(`All fans set to ${{speed}}%`, 'success');
+                fetchStatus();
+            }} else {{
+                log('Failed: ' + data.error, 'error');
+            }}
+        }}
+        
+        async function deleteGroup(name) {{
+            if (!confirm(`Delete group "${{name}}"?`)) return;
+            
+            const res = await api('/api/fans/groups', {{
+                method: 'DELETE',
+                body: JSON.stringify({{name}})
+            }});
+            
+            const data = await res.json();
+            if (data.success) {{
+                log(`Group "${{name}}" deleted`, 'success');
+                fetchStatus();
+            }} else {{
+                log('Failed: ' + data.error, 'error');
+            }}
         }}
         
         // Save functions
@@ -1037,6 +1245,15 @@ def get_html(theme="dark"):
         setInterval(fetchStatus, 3000);
         fetchStatus();
     </script>
+    
+    <footer style="text-align:center;padding:20px;color:var(--text-secondary);font-size:0.85rem;border-top:1px solid var(--border);margin-top:20px;">
+        <div style="margin-bottom:10px;">
+            <a href="https://github.com/ImpulsiveFPS/IPMI-Controller/issues" target="_blank" style="color:var(--accent-primary);text-decoration:none;margin:0 10px;">🐛 Report Bug</a>
+            <a href="https://github.com/ImpulsiveFPS/IPMI-Controller" target="_blank" style="color:var(--accent-primary);text-decoration:none;margin:0 10px;">📁 GitHub Repo</a>
+            <a href="https://ko-fi.com/impulsivefps" target="_blank" style="color:var(--accent-primary);text-decoration:none;margin:0 10px;">☕ Support on Ko-fi</a>
+        </div>
+        <div>IPMI Controller v3.0.0 - Built by ImpulsiveFPS</div>
+    </footer>
 </body>
 </html>'''
 
@@ -1320,6 +1537,20 @@ async def api_control_manual(req: ManualSpeedRequest, username: str = Depends(ge
         if not service._init_controller():
             return {"success": False, "error": "Not connected"}
     
+    # Handle group speed setting
+    if req.group:
+        groups = service.config.get('fan_groups', {})
+        if req.group not in groups:
+            return {"success": False, "error": f"Group '{req.group}' not found"}
+        
+        fan_ids = groups[req.group].get('fan_ids', [])
+        success = True
+        for fan_id in fan_ids:
+            if not service.set_manual_speed(req.speed, fan_id):
+                success = False
+        return {"success": success}
+    
+    # Handle individual fan or all fans
     if service.set_manual_speed(req.speed, req.fan_id):
         return {"success": True}
     return {"success": False, "error": "Failed"}
@@ -1419,6 +1650,34 @@ async def api_stop_identify(username: str = Depends(get_current_user)):
     service.stop_identify()
     return {"success": True}
 
+# Fan Groups API
+@app.post("/api/fans/groups")
+async def api_save_group(data: dict, username: str = Depends(get_current_user)):
+    service = get_service(str(CONFIG_FILE))
+    name = data.get('name')
+    fan_ids = data.get('fan_ids', [])
+    
+    if not name:
+        return {"success": False, "error": "Group name required"}
+    
+    if 'fan_groups' not in service.config:
+        service.config['fan_groups'] = {}
+    
+    service.config['fan_groups'][name] = {'fan_ids': fan_ids}
+    service._save_config()
+    return {"success": True}
+
+@app.delete("/api/fans/groups")
+async def api_delete_group(data: dict, username: str = Depends(get_current_user)):
+    service = get_service(str(CONFIG_FILE))
+    name = data.get('name')
+    
+    if 'fan_groups' in service.config and name in service.config['fan_groups']:
+        del service.config['fan_groups'][name]
+        service._save_config()
+        return {"success": True}
+    return {"success": False, "error": "Group not found"}
+
 # Public API (no auth required - for external integrations)
 @app.get("/api/public/status")
 async def api_public_status():