feat(entity): Chunk #4 data layer + entity UI (characters & world-building)

Data layer:
- Fuzzy scorer (packages/core/src/fuzzy.ts) with index recovery + unit tests
- Backlink computation (packages/core/src/backlinks.ts) incl. entity-level backlinks
- Consistency checker (packages/core/src/consistency.ts) incl. reciprocity/scope + unit tests
- StorageAdapter contract extended with listEntities/searchEntities/saveEntity/deleteEntity;
  implemented in Local (Dexie) and Server adapters; contract tests cover entity CRUD + ?q= search
- WorldItem.fields now supports list values (keyPeople, rivals); expanded RelationshipKind
- @mention autocomplete extension + picker in the editor package

Entity UI (apps/web/src/features/entities/):
- Generic field renderer (EntityFields) driven by ENTITY_FIELDS/FieldDef
- Tabbed directory with fuzzy search + entity cards (EntitiesView)
- Create/edit/delete drawer (EntityEditor) reusing shared fields
- Relationship editor + force-directed SVG relationship map
- Entity engine stylesheet; wired into nav

Store: project-store entity methods (load/create/update/delete) over the StorageAdapter contract.

CI-green: typecheck, lint, 65 tests, and web build all pass.

CHUNK#4.md

@@ -4,6 +4,8 @@
 
 **Purpose:** Make the story's moving parts first-class: character sheets with typed relationships, flexible world items, fast fuzzy search, backlinks, and `@mention` links from prose to entities. After this chunk, the "tools to facilitate and integrate characters, world building" requirement is fully delivered.
 
+**Status (updated 2026-10-25):** 🟡 In progress. Data layer and entity UI layer complete and CI-green (`pnpm typecheck`, `pnpm test`, `pnpm lint`, `pnpm build` all pass; 65 tests green across the workspace). See "Remaining" below.
+
 ---
 
 ## Steps
@@ -40,14 +42,22 @@
 ---
 
 ## Acceptance criteria (all must pass)
-- [ ] Create a character with all field types (incl. list + link) via the generic renderer — no custom code added.
-- [ ] Fuzzy search over 500 seeded entities returns in < 50 ms (measured in test).
-- [ ] `@` autocomplete → chip → popover → open sheet, all working; works while typing fast (no stale menus).
-- [ ] Backlinks correct and live-updating (save doc → "Appears in" updates within one event round-trip).
-- [ ] Consistency check flags the seeded dead-character-after-death case.
-- [ ] Relationship map renders and navigates.
+- [~] Create a character with all field types (incl. list + link) via the generic renderer — no custom code added. Generic renderer done for `text`/`textarea`/`checkbox`/`tags` (list); `link` field type pending.
+- [x] Fuzzy search over 500 seeded entities returns in < 50 ms (measured in test).
+- [~] `@` autocomplete → chip → popover → open sheet, all working; works while typing fast (no stale menus). Autocomplete + chip + open sheet done; hover popover pending.
+- [x] Backlinks correct and live-updating (save doc → "Appears in" updates within one event round-trip).
+- [ ] Consistency check flags the seeded dead-character-after-death case. Logic in `packages/core/src/consistency.ts` done; UI wiring + seeded case pending.
+- [x] Relationship map renders and navigates.
 - [ ] Global palette finds a chapter, a character, and a note from one box.
-- [ ] Contract suite still green on both adapters.
+- [x] Contract suite still green on both adapters.
+
+## Remaining work
+- Wire `findInconsistencies()` into the Characters tab as a warnings list (Chunk 3.2).
+- Index entities in the global `Ctrl/Cmd+K` palette (Chunk 3.1).
+- Context rail (right side of WritingView): this chapter's mentioned characters, pinned entities, related notes (Chunk 3.2).
+- Extend `server/src/seed.ts`: full character sheets (bio, voice, 2 relationships each) + 5 world items (Chunk 4.1).
+- `docs/DATA_MODEL.md`: the entity registry table (kind → fields) as the human reference (Chunk 4.2).
+- E2E: create character → `@mention` it in a chapter → backlinks tab lists the chapter → open sheet from the chip (Chunk 5.3).
 
 ## Definition of done
 The author's canon — who, what, where — is structured, searchable, linked to the prose, and checkable. This is the data the AI roles will reason from in Chunk 9.