feat(arch): arch_plan_from_spec, three arch_* critique focuses, the arch pack, lean 64 and the counts

The three track-F branches are merged; this is the integration that makes the
twelve SECTION 25 tools one surface.

- engineering/arch/spec.py: a whole plan from one document - walls with their
  openings, stairs, room labels measured off the walls just drawn, the
  exterior chains and the schedules - inside one transaction. Everything the
  model, the wall engine or the stair symbol can refuse is refused before the
  transaction opens, by path; a room point in no closed face rolls it back,
  and so does a cancelled request, under the anyio shield of pid/spec.py.
  EXAMPLE_SPEC's rooms measure 4825 x 5750 and 3825 x 5750 - the net floor,
  computed by hand in the tests.
- engineering/arch/critique.py: arch_room_unlabelled, arch_wall_gap (50 mm,
  one issue per pair of walls, measured to the wall body so an L corner and a
  T stem both read as joined) and arch_opening_clash. One index per critique
  run; a drawing without an ACADMCP_ARCH record yields nothing. Each focus
  has a positive and a negative fixture.
- TOOL_PACK_NAMES gains "arch" (the twelve SECTION 25 tools); lean gains
  arch_wall, arch_opening, arch_room and arch_plan_from_spec and reaches 64;
  the arch tag ranks after mech, so SECTION 25 files as one `architecture`
  group - 241 tools in 26 groups.
- Six golden tuning cases, two of them Turkish, the arch_plan_from_spec alias
  record, the shared-command allowlist reconciled with what the merged records
  claim, the inventory regenerated, the registry snapshot retaken, and the
  README figures taken from check_doc_numbers rather than typed.
- Two more Turkish golden cases close the reconciliation's alias gaps
  ("vaziyet planı çiz" -> arch_plan_from_spec, "oda alanlarını hesapla" ->
  arch_rooms_detect); the arch records carry vaziyet / alan / oda / kat planı
  in diacritic and ASCII-folded spellings, because the search tokenizer splits
  on a non-ASCII letter. BOUNDARY and AREA stay with boundary_trace and
  analysis_measure_entity on purpose, recorded in the arch alias comment.
  Tuning top-1 73/84, top-3 83/84; holdout top-3 15/15.
- tests/test_token_suite.py: TOOL_PACKS=core,mech now drops the arch pack
  too (measured 193 = 236 - 9 - 22 - 12).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd

docs/tool-inventory.json

@@ -3,14 +3,14 @@
   "schema_version": 1,
   "package_version": "1.5.1",
   "totals": {
-    "tools": 240,
+    "tools": 241,
     "resources": 8,
     "prompts": 5,
     "groups": 26
   },
   "groups": {
     "analysis": 12,
-    "architecture": 11,
+    "architecture": 12,
     "batch": 3,
     "blocks": 9,
     "corner_ops": 4,
@@ -251,6 +251,20 @@
         "destructiveHint": false
       }
     },
+    {
+      "name": "arch_plan_from_spec",
+      "group": "architecture",
+      "cost": "mutate",
+      "summary": "Draw a whole floor plan - walls, doors, windows, stairs, rooms, chains, schedules - in one transaction.",
+      "tags": [
+        "arch",
+        "create"
+      ],
+      "annotations": {
+        "title": "Architecture: Plan From Spec",
+        "destructiveHint": false
+      }
+    },
     {
       "name": "arch_room",
       "group": "architecture",