[kimi] Add matrix config loader utility (#680) (#742)

config/matrix.yaml

@@ -2,22 +2,22 @@
 # Serves lighting, environment, and feature settings to the Matrix frontend.
 
 lighting:
-  ambient_color: "#1a1a2e"
-  ambient_intensity: 0.4
+  ambient_color: "#FFAA55"  # Warm amber (Workshop warmth)
+  ambient_intensity: 0.5
   point_lights:
-    - color: "#FFD700"
+    - color: "#FFAA55"      # Warm amber (Workshop center light)
       intensity: 1.2
       position: { x: 0, y: 5, z: 0 }
-    - color: "#3B82F6"
+    - color: "#3B82F6"      # Cool blue (Matrix accent)
       intensity: 0.8
       position: { x: -5, y: 3, z: -5 }
-    - color: "#A855F7"
+    - color: "#A855F7"      # Purple accent
       intensity: 0.6
       position: { x: 5, y: 3, z: 5 }
 
 environment:
   rain_enabled: false
-  starfield_enabled: true
+  starfield_enabled: true     # Cool blue starfield (Matrix feel)
   fog_color: "#0f0f23"
   fog_density: 0.02
 
@@ -26,3 +26,8 @@ features:
   visitor_avatars: true
   pip_familiar: true
   workshop_portal: true
+
+agents:
+  default_count: 5
+  max_count: 20
+  agents: []