Update documentation and regenerate screenshots; enhance asset integration details

README.md

@@ -136,8 +136,8 @@ The architecture maps onto Godot 4 nodes, scenes, and custom resources as descri
 - **Navigation:** `NavigationRegion3D` and `NavigationAgent3D`
 - **NPC behavior:** Custom lightweight finite state machines driven by `NpcProfile` resources
 - **UI and audio:** Godot `Control` nodes, themes, audio buses, and `AudioStreamPlayer` nodes
-- **Art assets:** authored PNGs in `assets/textures/` (≤1024px, power-of-two) produced by `tools/generate_textures.py` and imported by Godot; structural geometry stays procedural (`WorldBuilder`). The same script can generate textures through the OpenRouter image API (`--ai`, requires `OPENROUTER_API_KEY`).
-- **Asset tooling:** `tools/asset_pipeline.py` reuses the OpenRouter generator for role-aware assets and provides crop, resize, and image-audit commands.
+- **Art assets:** authored PNGs and the in-game generated set in `assets/textures/ai/game_ready/`; structural geometry stays procedural (`WorldBuilder`). The legacy `tools/generate_textures.py --ai` batch remains available.
+- **Asset tooling:** `tools/asset_pipeline.py` generates role-aware assets through OpenRouter and provides crop, resize, seamless-tile, and image-audit commands, including gameplay screenshot checks.
 - **Testing:** GUT (Godot Unit Test) in headless mode
 - **Source control:** git on a Gitea host with Gitea Actions (`.gitea/workflows/build.yml`) for headless tests and desktop release builds
 - **Targets:** Windows, Linux, and macOS desktop first; web later
@@ -156,14 +156,20 @@ Generate a role-sized image (generation requires `OPENROUTER_API_KEY`):
 python3 tools/asset_pipeline.py generate --prompt "weathered red brick" --role tile --output assets/textures/brick_extra.png
 ```
 
+Generated images are resized to the selected role profile. Non-square requests use
+the validated `openai/gpt-5-image-mini` source ratio and crop to the final role dimensions.
+Transparent glyphs can be recolored while preserving their alpha mask with
+`--foreground '#ffffff'`.
+
 Crop uses the image center by default; `--x` and `--y` select an explicit crop origin. Resize defaults to aspect-preserving `contain`; use `--fit cover` to crop or `--fit stretch` to distort to the exact dimensions.
 
 ```bash
 python3 tools/asset_pipeline.py crop assets/textures/source.png assets/textures/crop.png --width 256 --height 128
 python3 tools/asset_pipeline.py resize assets/textures/source.png assets/images/backgrounds/scene.png --width 1920 --height 1080 --fit cover
+python3 tools/asset_pipeline.py seamless assets/textures/rough_tile.png assets/textures/tile.png
 ```
 
-Audit accepts image files or directories. `--role auto` infers common roles from paths and filenames; explicit roles include `tile`, `texture`, `icon`, `card`, `banner`, `backdrop`, `background`, `overlay`, and `app_icon`.
+Audit accepts image files or directories. `--role auto` infers common roles from paths and filenames; explicit roles include `tile`, `texture`, `icon`, `card`, `banner`, `backdrop`, `background`, `overlay`, `app_icon`, and `screenshot`.
 
 ```bash
 python3 tools/asset_pipeline.py audit assets/textures