Off-BGG games become local library citizens

An unmatched title that's a REAL game BGG doesn't have dead-ended:
manual id or reject. The RPG local-citizen pattern generalizes to a
human decision — review (web + TUI, key l) gains "not on BGG — keep
locally": match_status "local" clears any BGG identity, diff routes it
to local_only (never queued), and enrich synthesizes a library entry
from the game's own photo reads (name, year, publisher cue — no API
call, so even a blocked run lands them; pruning keeps local keys).
Library and Titles show a "local — not on BGG" chip; Help's legend,
review description, and shortcuts cover the new verb, distinguishing
it from reject (bad read / not a game).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016jXZFSTZQKzAC8fqpWSz9g

tests/test_diff.py

@@ -407,6 +407,14 @@ def test_rpgitem_rows_are_local_only_never_queued():
     assert result.recognized == 1  # RPGs aren't counted against the queue
 
 
+def test_local_rows_are_library_citizens_never_queued():
+    local = {**_match("Obscure Homebrew", ""), "match_status": "local"}
+    result = compute_diff([local, _match("Catan", "13")], [])
+    assert result.local_only == ["Obscure Homebrew"]
+    assert [r["bgg_id"] for r in result.to_add] == ["13"]
+    assert result.pending == []  # decided, not waiting
+
+
 def test_split_copies_become_extra_collection_entries():
     # three vetoed per-photo copies, one owned: one claims the copy, the
     # other two are queued as new entries