Extract stage: vision title + edition-cue extraction, offline-tested

Per-photo raw results cached under data/extract_raw/ (gitignored) so
re-runs are free, --only re-extracts a single photo, and titles.json is
rebuilt with dedupe that keeps conflicting-edition sightings separate.
HEIC converts via pillow-heif; images downscale to <=1568px long edge;
model JSON parsed defensively (code fences, surrounding prose). Vision
callable is injectable — tests use a local fake; the real one uses the
anthropic SDK (approved) with the model from config.toml.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.gitignore

@@ -7,6 +7,7 @@ storage_state.json
 # Local inputs & cache (CSV/JSON artifacts in data/ ARE committed)
 photos/
 data/bgg_cache/
+data/extract_raw/
 
 # Python
 __pycache__/