docs: archive Space Scum Demo and reorganize game archives

- Archive Space Scum Demo (3777540) game files + prefix to TrueNAS
- Reorganize TrueNAS /Games/ into per-game subdirectories
- Rename non-STL stl-config.md files to README.md
- Update CONTEXT.md directory listing

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

gaming/CONTEXT.md

@@ -45,8 +45,10 @@ For per-game settings (RT, DLSS, HDR, retro games), see the **steam-game-setup**
 ├── ready-or-not/           # Ready or Not (1144200)
 │   ├── examples/          # Working configs and setup scripts
 │   └── scripts/           # Game-specific scripts
+├── space-scum-demo/        # Space Scum Demo (3777540)
+│   └── README.md         # Archived — demo ended
 ├── stackmon/               # Stackmon (3729550)
-│   └── stl-config.md     # Client STL configuration
+│   └── README.md         # Archived — playtest ended
 └── scripts/               # General gaming automation scripts
     └── CONTEXT.md         # Script-specific documentation
 ```

gaming/space-scum-demo/README.md

@@ -0,0 +1,41 @@
+# Space Scum Demo
+
+| Field | Value |
+|-------|-------|
+| **Steam App ID** | 3777540 |
+| **Developer** | Unknown |
+| **Engine** | GameMaker |
+| **Graphics API** | DX11 |
+| **Status** | Demo ended — archived for offline play |
+| **Genre** | Roguelike / card-based dungeon crawler |
+| **STL Profile** | None (no custom STL config created) |
+| **Setup Date** | 2026-03-09 |
+
+## Features
+
+| Feature | Supported |
+|---------|-----------|
+| Ray Tracing | No |
+| DLSS | No |
+| HDR | No |
+
+## Configuration Notes
+
+- Standard GameMaker DX11 title — no special configuration needed
+- Very lightweight requirements
+- No STL config or customvars file was created
+- Save data stored as `Battle_Cards_2/saves/*.sav` in the Proton prefix
+
+## Offline Archive
+
+Demo archived 2026-03-09. Game files archived (no Steam DRM):
+
+- **Archive**: `/mnt/truenas/media/Games/Space Scum Demo/Space-Scum-Demo-Archive.tar.zst` (721 MB)
+- **Contains**: Game files + Wine/Proton prefix with save data
+- **To play**: Extract and run with `wine space_scum.exe`
+- **Details**: See `/mnt/truenas/media/Games/Space Scum Demo/README.md`
+
+## Proton Compatibility
+
+- Used default Proton
+- MangoHud should show `API: VK` (DXVK translating DX11)

gaming/stackmon/README.md

@@ -30,10 +30,10 @@
 
 Playtest ended 2026-03-08. Game files archived (no Steam DRM):
 
-- **Archive**: `/mnt/truenas/media/Games/Stackmon-Playtest-Archive.tar.zst` (1.1 GB)
+- **Archive**: `/mnt/truenas/media/Games/Stackmon/Stackmon-Playtest-Archive.tar.zst` (1.1 GB)
 - **Contains**: Game files + Wine/Proton prefix with save data (`SaveFile0.es3`)
 - **To play**: Extract and run with `wine Stackmon.exe`
-- **Details**: See `/mnt/truenas/media/Games/Stackmon-Playtest-README.md`
+- **Details**: See `/mnt/truenas/media/Games/Stackmon/README.md`
 
 ## Proton Compatibility