Add per-component debug system, fix BP categories, enable plugin Content

- Add bDebug + DebugVerbosity (0-3) to all 5 components
- Gate verbose/diagnostic logs behind debug checks; keep key events always visible
- Unify BP categories to "PS AI ConvAgent|..." (was "PS_AI_Agent|...")
- Enable CanContainContent in .uplugin for plugin-specific assets
- Remove unused template/animation content assets

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Unreal/PS_AI_Agent/Config/DefaultEngine.ini

@@ -1,8 +1,8 @@
 
 
 [/Script/EngineSettings.GameMapsSettings]
-GameDefaultMap=/Game/Demo_VoiceOnly.Demo_VoiceOnly
+GameDefaultMap=/PS_AI_ConvAgent/Demo_VoiceOnly.Demo_VoiceOnly
-EditorStartupMap=/Game/Demo_VoiceOnly.Demo_VoiceOnly
+EditorStartupMap=/PS_AI_ConvAgent/Demo_VoiceOnly.Demo_VoiceOnly
 
 [/Script/Engine.RendererSettings]
 r.AllowStaticLighting=False