feat: add total skill gained tracking to HUD

- Add show_skills config option to HUDConfig
- Add total_skill_gained and skill_gains fields to HUDStats
- Add skills display section in HUD UI (purple box)
- Add update_skill() method to track skill gains
- Update on_skill handler in main_window.py to call update_skill()
- Add skills checkbox to HUD settings dialog
- Fix duplicate code in _refresh_display method
- Update to_dict/from_dict for skills config persistence

ui/hud_overlay_clean.py

@@ -48,6 +48,7 @@ class HUDConfig:
     show_cost_metrics: bool = True     # Cost per shot/hit/heal
     show_shrapnel: bool = False  # Deprecated - now integrated in loot summary
     show_gear_info: bool = True
+    show_skills: bool = False          # NEW: Total skill gained
 
     compact_mode: bool = False
 
@@ -62,6 +63,7 @@ class HUDConfig:
             'show_damage_stats': self.show_damage_stats,
             'show_cost_metrics': self.show_cost_metrics,
             'show_gear_info': self.show_gear_info,
+            'show_skills': self.show_skills,
             'compact_mode': self.compact_mode,
         }
 
@@ -77,6 +79,7 @@ class HUDConfig:
             show_damage_stats=data.get('show_damage_stats', False),
             show_cost_metrics=data.get('show_cost_metrics', True),
             show_gear_info=data.get('show_gear_info', True),
+            show_skills=data.get('show_skills', False),
             compact_mode=data.get('compact_mode', False),
         )
 
@@ -129,6 +132,10 @@ class HUDStats:
     current_fap: str = "None"
     current_loadout: str = "None"
 
+    # Skills (NEW)
+    total_skill_gained: Decimal = Decimal('0.0')  # Total of all skill gains
+    skill_gains: Dict[str, Decimal] = field(default_factory=dict)  # Per-skill tracking
+
     def recalculate(self):
         """Recalculate derived values."""
         # Total loot is shrapnel + other loot
@@ -229,6 +236,10 @@ class HUDSettingsDialog(QDialog):
         self.cb_damage.setChecked(self.config.show_damage_stats)
         form.addRow(self.cb_damage)
 
+        self.cb_skills = QCheckBox("Total Skills Gained")
+        self.cb_skills.setChecked(self.config.show_skills)
+        form.addRow(self.cb_skills)
+        
         # Display mode
         form.addRow(QLabel("<b>Display Mode</b>"))
 
@@ -263,6 +274,7 @@ class HUDSettingsDialog(QDialog):
         self.config.show_cost_breakdown = self.cb_cost_breakdown.isChecked()
         self.config.show_combat_stats = self.cb_combat.isChecked()
         self.config.show_damage_stats = self.cb_damage.isChecked()
+        self.config.show_skills = self.cb_skills.isChecked()
         self.config.compact_mode = self.cb_compact.isChecked()
         self.accept()
 
@@ -578,6 +590,20 @@ class HUDOverlay(QWidget):
 
             layout.addWidget(damage_box)
 
+        # === SKILLS (if enabled) ===
+        if self.hud_config.show_skills:
+            skills_box = QFrame()
+            skills_box.setStyleSheet("background-color: rgba(100, 50, 150, 80); border: 1px solid rgba(200, 150, 255, 50); border-radius: 4px;")
+            skills_layout = QHBoxLayout(skills_box)
+            skills_layout.setContentsMargins(8, 4, 8, 4)
+
+            self.skills_label = QLabel("Skills: 0.00")
+            self.skills_label.setStyleSheet("font-size: 11px; color: #DDA0DD;")
+            skills_layout.addWidget(self.skills_label)
+            skills_layout.addStretch()
+
+            layout.addWidget(skills_box)
+
         # Separator before footer
         sep_footer = QFrame()
         sep_footer.setFrameShape(QFrame.Shape.HLine)
@@ -641,6 +667,8 @@ class HUDOverlay(QWidget):
             height += 25
         if self.hud_config.show_damage_stats:
             height += 25
+        if self.hud_config.show_skills:
+            height += 25
         if self.hud_config.show_session_time:
             height += 20
 
@@ -809,31 +837,12 @@ class HUDOverlay(QWidget):
             # Damage stats
             self._safe_set_text('damage_dealt_label', f"Dealt: {int(self._stats.damage_dealt)}")
             self._safe_set_text('damage_taken_label', f"Taken: {int(self._stats.damage_taken)}")
+
+            # Skills
+            if hasattr(self, 'skills_label'):
+                self._safe_set_text('skills_label', f"Skills: {self._stats.total_skill_gained:.2f}")
         except Exception as e:
             logger.error(f"Error in _refresh_display: {e}")
-        self._safe_set_text('cps_label', f"Shot: {self._stats.cost_per_shot:.4f}")
-        self._safe_set_text('cph_label', f"Hit: {self._stats.cost_per_hit:.4f}")
-        self._safe_set_text('cphl_label', f"Heal: {self._stats.cost_per_heal:.4f}")
-
-        # Gear
-        self._safe_set_text('weapon_label', f"W: {self._stats.current_weapon[:20]}")
-        self._safe_set_text('armor_label', f"A: {self._stats.current_armor[:20]}")
-        self._safe_set_text('loadout_label', f"L: {self._stats.current_loadout[:20]}")
-
-        # Cost breakdown
-        self._safe_set_text('wep_cost_label', f"{self._stats.weapon_cost_total:.2f}")
-        self._safe_set_text('arm_cost_label', f"{self._stats.armor_cost_total:.2f}")
-        self._safe_set_text('heal_cost_label', f"{self._stats.healing_cost_total:.2f}")
-
-        # Combat
-        self._safe_set_text('kills_label', f"Kills: {self._stats.kills}")
-        self._safe_set_text('globals_label', f"Globals: {self._stats.globals_count}")
-
-        # Damage stats
-        self._safe_set_text('damage_dealt_label', f"Dealt: {int(self._stats.damage_dealt)}")
-        self._safe_set_text('damage_taken_label', f"Taken: {int(self._stats.damage_taken)}")
-
-        # Shrapnel (in summary section now - already updated above)
 
     # === Public Update Methods ===
 
@@ -909,6 +918,18 @@ class HUDOverlay(QWidget):
             self._stats.kills += count
             self._refresh_display()
 
+    def update_skill(self, skill_name: str, amount: Decimal):
+        """Update skill gain tracking."""
+        logger.debug(f"[HUD] update_skill called: skill={skill_name}, amount={amount}")
+        if self.session_active:
+            # Track per-skill gains
+            if skill_name not in self._stats.skill_gains:
+                self._stats.skill_gains[skill_name] = Decimal('0.0')
+            self._stats.skill_gains[skill_name] += amount
+            # Update total
+            self._stats.total_skill_gained += amount
+            self._refresh_display()
+
     def update_globals(self):
         """Update global count."""
         if self.session_active:

ui/main_window.py

@@ -1137,10 +1137,18 @@ class MainWindow(QMainWindow):
 
         def on_skill(event):
             """Handle skill events."""
+            from decimal import Decimal
             skill_name = event.data.get('skill_name', 'Unknown')
             gained = event.data.get('gained', 0)
             self.log_info("Skill", f"{skill_name} +{gained}")
             
+            # Update HUD skill tracking
+            try:
+                gained_decimal = Decimal(str(gained))
+                self.hud.update_skill(skill_name, gained_decimal)
+            except Exception as e:
+                logger.error(f"[ERROR] Error updating HUD skill: {e}")
+
         def on_damage_dealt(event):
             """Handle damage dealt - track damage stats and weapon cost."""
             from decimal import Decimal