include info about asset sources file

docs/MAP.md

@@ -165,13 +165,46 @@ audio/
 ### Visual Assets (`assets/`)
 ```
 assets/
+├── audio/
+│   ├── music/                  # Background music files
+│   └── sfx/                    # Sound effects
 ├── sprites/
 │   ├── characters/skeleton/    # Character artwork
 │   ├── gems/                   # Match-3 gem sprites
 │   └── ui/                     # User interface elements
 ├── textures/
 │   └── backgrounds/            # Background images
-└── fonts/                      # Custom fonts
+├── fonts/                      # Custom fonts
+└── sources.yaml               # Asset metadata and attribution
+```
+
+### Asset Management (`assets/sources.yaml`)
+**REQUIRED**: Every asset added to the project must be documented in `assets/sources.yaml` with:
+- **Source information** - Where the asset came from (URL, artist, store, etc.)
+- **License details** - Usage rights, attribution requirements, commercial permissions
+- **Attribution text** - Exact text to use for credits if required
+- **Modification notes** - Any changes made to the original asset
+- **Usage context** - Where and how the asset is used in the project
+
+**Example format:**
+```yaml
+audio:
+  music:
+    "Space Horror InGame Music (Exploration) _Clement Panchout.wav":
+      source: "https://freesound.org/people/ClementPanchout/"
+      license: "CC BY 4.0"
+      attribution: "Space Horror InGame Music by Clement Panchout"
+      modifications: "Converted to WAV, loop points adjusted"
+      usage: "Background music for all gameplay scenes"
+
+sprites:
+  gems:
+    "gem_blue.png":
+      source: "Created in-house"
+      license: "Project proprietary"
+      attribution: "Skelly development team"
+      modifications: "None"
+      usage: "Match-3 blue gem sprite"
 ```
 
 ## Data & Configuration
@@ -229,6 +262,7 @@ Game --> scenes/game/gameplays/match3_gameplay.tscn, clickomania_gameplay.tscn
 AudioManager --> assets/audio/music/
 SettingsManager --> localization/languages.json
 AudioManager --> data/default_bus_layout.tres
+Asset Management --> assets/sources.yaml (required for all assets)
 ```
 
 ## Logging System