Move generalized game asset tooling tasks from TODO.md to DONE.md

DONE.md

@@ -288,3 +288,11 @@ Completed task sections moved from `TODO.md`. Sections are moved only when every
 - [x] Add visual and audio feedback per escalation level (colors, tones, shake).
 - [x] Add audio for crowd ambience, radio responses, and confirmation prompts.
 - [x] Externalize dialogue and UI text for localization.
+
+## Generalized Game Asset Tooling
+
+- [x] Reuse the OpenRouter image backend for role-aware arbitrary asset generation.
+- [x] Add exact-dimension image crop and aspect-preserving resize commands.
+- [x] Audit existing assets for role-specific dimensions, aspect, alpha, and tile seams;
+      report projection/perspective checks for visual review.
+- [x] Add automated tests and document asset-pipeline usage.