SPEC v0.9: M12b and M12c outcomes (D-055 to D-058), U2 values, UX-9 (D-059, M12d)

- D-055 build-time copy of the keyword table, D-056 parseCategoryKeywords,
  D-057 enum declaration orders, D-058 E-7 example shows server_version
  15 and 16 and its test compares them again.
- D-051 fulfilled: §9.7 hex values from docs/ux/design-spec.md §2.3;
  design-spec.md binding, strings.csv the source of string resources.
- D-059: ExpenseEditorOptions.frequentCategoryIds and
  CategoryRepository.deletable; new milestone M12d with PLAN-M12d and
  prompts/M12d.md; M7a-f depend on M6 and M12d.
- suggestCategory readings (null when other is archived), §11.2 landed
  marks and the 2026-10-18 dry run, dev stack on schema 2, PLAN-M12b
  SQLite 3.51.x, design-spec §6 notes in PLAN-M6/M7c/M7f; HANDOFF rewritten.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TQd3pEP9UeN2uifbHknQ7B

contracts/examples/E-7-me/response.json

@@ -6,7 +6,7 @@
     "picture_version": null,
     "created_at": "2026-10-17T06:12:40.512Z",
     "updated_at": "2026-10-17T06:12:40.512Z",
-    "server_version": 11
+    "server_version": 15
   },
   "device": {
     "id": "0192a001-0000-7000-8000-000000000001",
@@ -26,7 +26,7 @@
       "picture_version": null,
       "created_at": "2026-10-17T06:12:40.512Z",
       "updated_at": "2026-10-17T06:12:40.512Z",
-      "server_version": 11
+      "server_version": 15
     },
     {
       "id": "0192a000-0000-7000-8000-000000000002",
@@ -35,7 +35,7 @@
       "picture_version": 2,
       "created_at": "2026-10-17T07:01:15.000Z",
       "updated_at": "2026-10-17T07:05:00.250Z",
-      "server_version": 12
+      "server_version": 16
     }
   ],
   "public_url": "https://icehack.asuscomm.com:8443"