RPGs become local library citizens: identified, enriched, never uploaded

When the board-game search (and truncation heads) runs dry, resolve
falls back to type=rpgitem — the geekdo database is shared, so the same
API, token, cache, and classification machinery apply. Matched rpgitems
flow through review and enrich normally but diff routes them to a
local_only bucket, structurally outside to_add/to_update: their
collections live on RPGGeek, beyond this pipeline's write scope. The
library page gains an All/Board games/RPGs filter and an "RPG · local
only" badge; the catalog tags them too. Fixture generators write blanket
empty rpgitem stubs for every known query (the fallback fires for every
unmatched title) with real synthetic entries for Alice Is Missing.

Data: both Alice rows re-resolved from unmatched to auto rpgitem
matches. First diff since the audit reworks also lands their real-data
consequences: Dungeon! gains its TSR edition update on a versionless
copy the old claim ordering missed, to_add rows carry unioned reshoot
provenance, and the Herbaceous typo row's survivor is now the
correctly-spelled title.

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

CLAUDE.md

@@ -47,6 +47,7 @@ Full design lives in `bgg-shelf-pipeline-spec.md` (read it before changing pipel
 - Base game vs. expansion vs. new edition is the top failure mode — bias matching toward `ambiguous` over auto-match ("Wingspan Europe" must not match base Wingspan).
 - Editions/versions matter: Eric owns multiple editions of some games — each is a separate collection entry (keyed by `collid` on BGG). Never guess a version: no legible cues → `version_unknown` and a version-less collection entry.
 - Normalize titles (casefold, strip punctuation/articles, special chars like é/&/:) identically on both sides of a match; dedupe across photos but keep `source_photos` provenance.
+- **RPGs are local-only citizens**: when the board-game search runs dry, resolve falls back to `type=rpgitem` (same geekdo API/token). Matched rpgitems enrich into the library but diff routes them to `local_only` — they must never reach `to_add.csv`/upload (their collection lives on RPGGeek, out of scope).
 - Detailed BGG API behavior (202 queueing, collection-endpoint quirks, endpoints): use the `bgg-api` skill. **If the spec's BGG behavior changes, update the `bgg-api` skill to match** — they must not drift.
 
 ## Git