Phase 2: Code Analysis complete with Harmony patches

- Added docs/CODE_ANALYSIS_PHASE2.md with deep analysis
- Implemented VoiceManagerPatch: voice limit (128), ducking, fade times
- Implemented AudioDuckingPatch: snapshot apply, fade in/out timing
- Implemented EnemyAudioPatch: enemy attack hooks, CFVoice routing
- Updated Plugin.cs to call all patch Apply methods
- Hook targets: UtageFmodVoiceManager, SnapshotManager, CFVoiceEventUtility

src/HomuraHimeAudioMod/Plugin.cs

@@ -24,24 +24,27 @@ namespace HomuraHimeAudioMod
             
             harmony = new Harmony(PluginInfo.PLUGIN_GUID);
 
+            Log.LogInfo($"HomuraHime Audio Mod v{PluginInfo.PLUGIN_VERSION} initializing...");
+
             ApplyPatches();
+
+            Log.LogInfo("HomuraHime Audio Mod initialized successfully");
         }
 
         private void ApplyPatches()
         {
-            Log.LogInfo($"Applying audio patches...");
+            Log.LogInfo("Applying audio patches...");
 
-            // Phase 2 will populate these patch classes after code analysis
-            // VoiceManagerPatch.Apply(ref harmony);
-            // AudioDuckingPatch.Apply(ref harmony);
-            // EnemyAudioPatch.Apply(ref harmony);
+            VoiceManagerPatch.Apply(ref harmony);
+            AudioDuckingPatch.Apply(ref harmony);
+            EnemyAudioPatch.Apply(ref harmony);
 
-            Log.LogInfo($"Patches applied successfully");
+            Log.LogInfo("All patches applied successfully");
         }
 
         private void OnDestroy()
         {
-            harmony?.UnpatchAll();
+            harmony?.UnpatchAll(PluginInfo.PLUGIN_GUID);
         }
     }
 }