Add private-hand search, category filters and display sorting

Wrap existing physical hand cards with local name search, printed-category
filters and saved/name/category display order. Preserve card IDs, actions and
inspectors, keep required decisions outside filtering, and recompute results
from current owned cards. Provide count, clear filters, keyboard scrolling,
separate empty/no-match states and internal guidance. Filters reset on leaving
the hand tab, changing seats or refreshing; saved order is never modified.
Correct the stale Harass availability note to reflect connected allocation.

Six focused tests cover normalized literal search, duplicate physical IDs,
canonical expansion categories, stable immutable sorting, current holdings,
JSON restoration, full-table per-seat privacy and empty setup messaging.
Independent review found no material issue. Types, lint, all 4996 offline
tests and production build pass on stable source. No HTTP, auth, schema or
persistence implementation changed, so HTTP tests were not repeated.

Browser QA used a new two-player Basic Harkonnen/Easy Atreides game created
through genuine setup. Search/category/reset, named inspector and all three
sort orders worked. An active no-match filter updated from 0 of 2 to 0 of 4
when a real auction purchase and Harkonnen bonus arrived. Leaving the hand tab
and refreshing restored all four cards in their original saved order while
the second auction remained at a human decision. Enter in search performed
no game action. The internal guide worked by keyboard. At 390px, controls
were 44px high with 16px text and 14px labels, form width/scroll width 339px;
the focused overflowing card row responded to ArrowRight. Normal viewport
restored. Screenshot capture timed out; full visual/screen-reader acceptance
and complete expansion/card-effect combinations remain open.

All 1538 opening rooms, 3258 seats and auxiliary rows
remain unchanged. SQLite integrity and foreign keys pass. Only one isolated
QA game, its human seat and entry receipt were added; the AI remains in game state. Healthy server reused without restart,
migration, reset or automation. No AI strategy or mode/publication gate changed.

Private evidence: 20260921-hand-browsing.
Verified source tree: 39dce28efa52dd66baf019baaf8610e6795601b3b569ac4ac0b6f405bffc1d96

docs/COMPONENT_INVENTORY.md

@@ -1,5 +1,11 @@
 # Component inventory and verification ledger
 
+**Hand browsing, 21 September 2026:** owned cards now have name search, printed
+category filters and display sorting, with physical IDs, complete existing card
+controls and inspectors retained. Empty results have a clear reset, and current
+cards update the visible results. This is a connected browsing prototype, not
+full card-effect or visual certification. See [scope and evidence](HAND_BROWSING.md).
+
 **Draw-pile counts, 21 September 2026:** the table now displays authoritative
 Treachery and Spice draw counts above the board, separate from auctions, hands,
 caches and discards. Existing Nexus counts and authorized card inspectors remain