feat(ai): resolve Steam app IDs from the library, don't make the model guess — 0.29.0

The model guessed "Rainbow Six Siege" for appID 2694490 (Path of Exile 2). We
already know the names locally, so ground it: steam.appid_names() maps appid→name
from the scanned library, and ai.build_prompt scans the text for app IDs and
injects a resolved glossary. Only locally-known IDs are listed; no network, no
fine-tuning. Tests + verified live (2694490 = Path of Exile 2).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to RigDoctor are recorded here. Format follows
 (`MAJOR.MINOR.PATCH`, pre-1.0). `__version__` and `pyproject.toml` must match the git
 release tag (so the auto-updater, D18, can compare versions).
 
+## [0.29.0] - 2026-05-22
+### Added
+- **AI now resolves Steam app IDs from your library instead of guessing.** When app IDs appear
+  in the logs/findings, RigDoctor looks them up in your scanned games (`steam.appid_names()`) and
+  injects an "App IDs (resolved from your installed games)" glossary into the prompt — so the
+  model names games correctly (e.g. `2694490 = Path of Exile 2`) rather than hallucinating. Only
+  IDs it can resolve locally are listed; no network, no model "training" needed.
+
 ## [0.28.1] - 2026-05-22
 ### Fixed
 - **AI explanations were misreading stale/benign logs.** Three fixes so the model analyses the