docs(phase2): reconcile requirements and migrate capabilities/contracts

Surface-matrix sweep of every source doc; added nine missed behaviors (METADATA-115, REVIEW-50, APP-55/60/65, SETTINGS-45 mode, Generate-text availability, defaults-off). 153 requirements, 0 coverage gaps.

Migrated capabilities to docs/capabilities/ and contracts to docs/contracts/; added WOO-API, API, DATA-MODEL, PROMPTS, UX, TEST-SPEC. Populated MILESTONES; branch-neutral trunk docs; renamed umbrella term to Woo Slab Taxonomy. Archived reconciliation working records under .audit/archive/.

AGENTS.md

@@ -1,11 +1,11 @@
 # AGENTS.md
 
-## STOP — coding paused (Phase 2: requirements reconciliation)
+## Status — Phase 2 reconciliation complete
 
-Do not implement Milestone 3 or any feature right now. Trunk docs are being consolidated.
-Scope authority is `docs/REQUIREMENTS.md` + `docs/MILESTONES.md`. M3 will be re-derived as a subset of requirement IDs.
-**Current state, locked rulings, and next steps: read `.audit/2026-09-18-session-handoff.md` first.**
-The Milestone 3 text below is the pre-reconciliation state and is not authoritative until Phase 2 completes. The "Agent context" and "Milestone 3" sections below describe paused intent, not the current task.
+`docs/REQUIREMENTS.md` (153 rows) is the only normative text; scope is the M3 ID subset in `docs/MILESTONES.md`.
+Capability and contract docs live in `docs/capabilities/` and `docs/contracts/`.
+Reconciliation evidence is archived under `.audit/archive/`; the coverage ledger and matrices are in `.audit/coverage/`.
+Starting implementation is Ty's call; when it starts, implement only the M3 ID subset.
 
 ## Structure contract (read before creating any doc)
 
@@ -14,17 +14,22 @@ Before creating or moving any doc, look up its home in `docs/STRUCTURE.md` (arti
 If no home exists, stop and ask Ty — do not create a new artifact.
 Run `python tools/check_requirements.py` after any docs change; it must pass.
 
+## Agent runtime rules
+
+- Subagents (`explore`, `general`) run on a single local GPU and cannot handle concurrency. Invoke only one subagent at a time; never issue parallel subagent calls.
+- Subagents are for mechanical extraction only (read and list). They never write and never set a disposition; rulings stay with Ty.
+
 ## Agent context
 
-Read `docs/README.md` first, then this file, `docs/CAPTURE.md`, `docs/PHOTOS.md`, and `docs/CREATE.md`.
+Read `docs/README.md` first, then this file, `docs/capabilities/CAPTURE.md`, `docs/capabilities/PHOTOS.md`, and `docs/capabilities/CREATE.md`.
 
-Implement **Milestone 3** only. Specification: `docs/CREATE.md`.
+Implement **Milestone 3** only. Specification: `docs/capabilities/CREATE.md`.
 Product overview: `docs/PRODUCT.md`.
 
-**M3 scope** (what is in vs out) comes from Ty conversations and `docs/CREATE.md`.
-**Behavior** for Woo sync, metadata, pricing, and inference is written into `docs/CREATE.md` from the technical requirements on `main`. Do not treat older milestone splits on `main` as scope authority. Do not code against `main` docs by cross-reference. Use `docs/CREATE.md` on this branch.
+**M3 scope** (what is in vs out) comes from Ty conversations and the reconciled `docs/MILESTONES.md` + `docs/REQUIREMENTS.md`.
+**Behavior** for Woo sync, metadata, pricing, and inference is in `docs/capabilities/CREATE.md` and the `docs/contracts/` set. `docs/REQUIREMENTS.md` is the only normative text.
 
-Do not implement work outside `docs/CREATE.md` unless Ty expands scope in chat.
+Do not implement work outside the M3 requirement subset unless Ty expands scope in chat.
 Do not touch deploy port `:10880`. UAT redeploy target is overnight Docker on ubudual5060 `:10881`.
 
 ## Milestone 3
@@ -33,8 +38,8 @@ Create. Exit criteria: a Photos-ready slab is **submission-ready for WooCommerce
 
 ## Milestone 1 and 2 (shipped inputs)
 
-- Capture: `docs/CAPTURE.md`
-- Photos: `docs/PHOTOS.md` (UAT on `:10881`)
+- Capture: `docs/capabilities/CAPTURE.md`
+- Photos: `docs/capabilities/PHOTOS.md` (UAT on `:10881`)
 
 ## Invariants
 
@@ -45,7 +50,7 @@ Create. Exit criteria: a Photos-ready slab is **submission-ready for WooCommerce
 - `bdft = sqft × thickness_in`
 - Price proposal is `bdft × species $/bdft`. User may replace it. Missing rate leaves price empty.
 - User-entered length, thickness, SKU, price, and taxonomy override computed or inferred values.
-- **Woo attributes** means synced species and wood categories; Edge, Figure, Grade, Thickness, Moisture; `fig-*` and `feat-*`. Store is source of truth.
+- **Woo Slab Taxonomy** means synced species and wood categories; Edge, Figure, Grade, Thickness, Moisture; `fig-*` and `feat-*`. Store is source of truth.
 - Woo auth is WordPress application password (server-side). `WOO_BASE_URL` is compose/env. Inference URL is Settings.
 - SKUs matching `SLAB-UAT-*` create as Woo draft.
 - Create works with inference off.