diff --git a/deploy/README.md b/deploy/README.md
index 7d41def..083a7ae 100644
--- a/deploy/README.md
+++ b/deploy/README.md
@@ -6,3 +6,12 @@ Where the container runs is chosen at runtime.
 No FastAPI and no Woo client in this milestone.
 
 `docker-compose.yml`, `Caddyfile.fragment`, and `.env.example` describe an older two-service stack. They are not the Milestone 1 contract.
+
+## Milestone 1 UAT — deployment POR
+
+- **One container.** Build a single Docker image that serves the SvelteKit capture app. No FastAPI, no Woo client, no Caddy TLS edge in M1. (Caddy/compose/Woo are Milestone 3.)
+- **Host chosen at runtime.** Record the machine and URL in `INVENTORY.md` when the container starts. Do not put a host name in the product spec.
+- **LAN-reachable UAT URL.** For UAT the container binds a port on the LAN interface (not only `127.0.0.1`), so other machines on the LAN — e.g. a phone — reach the app at `http://<host-lan-ip>:<port>`.
+- **No backend.** The app is browser-only in M1 (see `docs/CAPTURE.md`). There is no `/api` route and no inference.
+
+Reference for the current UAT host: see `INVENTORY.md` (filled in when the container starts).
diff --git a/docs/CAPTURE.md b/docs/CAPTURE.md
index 150bd1d..d003822 100644
--- a/docs/CAPTURE.md
+++ b/docs/CAPTURE.md
@@ -45,6 +45,12 @@ Phone: iOS Safari, Android Chrome.
 PC: Chrome, Edge, Firefox.
 Other clients get a hard stop.
 
+## Input photo
+
+Accepted input: JPEG. Phones typically save JPEG; Android Chrome delivers JPEG by default.
+
+If the file is HEIC and the browser cannot decode it, show a one-tap notice to retake the photo as JPEG. HEIC is never silently dropped and never decoded server-side in Milestone 1.
+
 ## States
 
 One photo component is reused. Each state advances on approve. Back returns to the previous state. A device draft restores the last approved state.
@@ -126,3 +132,5 @@ The first inventory photo is the measurement reference. Later inventory photos u
 
 Source below that floor: warn and require a new photo. No upscale from an undersized source.
 Editor preview of alpha is a light gray checkerboard. The storefront uses the theme background.
+
+File size: aim under 200KB per image (soft goal, not a hard gate in Milestone 1).
diff --git a/docs/M1-POR.md b/docs/M1-POR.md
new file mode 100644
index 0000000..d57c7f6
--- /dev/null
+++ b/docs/M1-POR.md
@@ -0,0 +1,96 @@
+# Milestone 1 — Plan of Record (POR)
+
+Decisions captured as they are made. This is the working plan for implementing and UAT-ing Milestone 1. It is the source of truth for scope, order, and dispatch; the spec detail lives in `docs/CAPTURE.md` and `docs/PRODUCT.md`.
+
+## Scope
+
+Implement **Milestone 1 — Capture** only (see `AGENTS.md`). Browser-only, inference-free, no backend, no Woo create. Milestones 2–4 are out of scope.
+
+## Method — TDD (non-negotiable)
+
+Every card is delivered **test-first** per the `test-driven-development` skill:
+
+```
+NO PRODUCTION CODE WITHOUT A FAILING TEST FIRST
+```
+
+- **Red-Green-Refactor**, tracer-bullet: one behavior slice at a time (RED→GREEN→REFACTOR), not all-tests-then-all-code.
+- **Verify RED** (watch it fail for the right reason) and **Verify GREEN** (it passes + full suite stays green) are mandatory before the card is done.
+- Code written before a failing test is **deleted and redone** — not kept as "reference."
+- The deterministic core (math + PNG contract) is unit-tested in a browser-runnable JS suite; UI behaviors are tested with Playwright against the fixtures.
+- A card is not complete until: every new function has a test, each test was seen failing first, the full suite passes with pristine output.
+
+## Card breakdown (implementation order)
+
+Each card follows TDD. "Define" = write the failing tests (RED); "Build" = minimal code to pass (GREEN); "Refactor" = clean up keeping green.
+
+1. **Scaffold + Dockerfile + test harness** — SvelteKit project with the browser-only M1 runtime (Web Worker, canvas/OffscreenCanvas, IndexedDB via `idb-keyval`), `frontend/Dockerfile`, and the test harness (JS unit runner + **Playwright** web).
+   - *TDD note:* this card establishes the harness itself (a smoke test that runs and fails, then passes) so every later card has a place to be RED/GREEN.
+2. **Deterministic core** — the pure math + PNG-encode functions.
+   - *RED:* unit tests for `scale`, `sqft`, `bdft`, width sampling, 1/8″ stepping, rounding, and the PNG contract (3:4, 8-bit RGBA, 80% fill, ≥1600px floor, undersized→retake). Run on the fixtures' calibration records.
+   - *GREEN/REFACTOR:* implement to pass; core is authoritative and server-less.
+3. **Capture + Mask** — Add photo (JPEG; HEIC→"retake as JPEG" notice), green/black key, four knobs, debounced recompute, mask approve.
+   - *RED:* Playwright — load fixture, key sheet, approve; empty-mask blocks approve; HEIC shows the notice.
+   - *GREEN/REFACTOR:* build the Mask state to pass.
+4. **Length axis** — min-area bounding rectangle + long-side axis, user rotate, approve.
+   - *RED:* Playwright — rect drawn from the approved mask, axis on long side, rotate, approve.
+   - *GREEN/REFACTOR:* build the axis state.
+5. **Measure + PNG** — length/thickness (1/8″), compute sqft/bdft/widths, write the 3:4 inventory PNG. M1 stops here.
+   - *RED:* Playwright — enter L/thickness → Calculate; assert PNG is 3:4 with alpha, and numbers equal the fixture's expected values.
+   - *GREEN/REFACTOR:* build Measure + PNG encode.
+6. **M1 UAT** — serve the container per `deploy/README.md` §Milestone 1 UAT; run the full Playwright suite in the container; then the manual phone pass. Record host + URL in `deploy/INVENTORY.md`.
+
+## Deployment (UAT)
+
+See `deploy/README.md` §Milestone 1 UAT — deployment POR: one container, host chosen at runtime, LAN-reachable URL, no backend.
+
+## Dev / QA worker dispatch
+
+Two local inference endpoints are available as dispatchable workers for test / dev / QA:
+
+- **`.202:8081`** — `gemma-4-12B-it-q4_k_m` (12B, Q4) — **completion only, no vision.** Use for text/code tasks: drafting, code review, test-writing help.
+- **`.202:8082`** — `Qwen3.8-27B-UD-IQ3_XXS` (27B, IQ3) — **completion + multimodal (vision).** This is the **vision worker**: any task that must look at a slab photo (bg-removal tuning, mask/axis calibration review, fixture sanity checks) goes here.
+
+Coordinator: Hermes (me) — plans, decomposes, dispatches, verifies, and does work directly when a card is small or judgment-heavy.
+
+**Rules:**
+- **Vision tasks → `.202:8082` only.**
+- **Never more than one task on an endpoint at a time.** Two concurrent jobs on the same endpoint back up and overheat. Serialize dispatch; one endpoint = one active task.
+- Both run low-quant (Q4 / IQ3). Fine for dispatch-style assist; deep sustained reasoning is better done by the coordinator directly or on a higher-quant model.
+
+## Test plan (M1)
+
+Three layers. The deterministic core is unit-tested; the end-to-end path is Playwright; a real phone is the final UAT gate.
+
+### 1. Unit (deterministic core) — must pass before any UI consumes it
+- `bdft = sqft × thickness_in`; `sqft = (mask_px / scale²) / 144`; `scale = longest_axis_px / L`.
+- 1/8 in stepping; rounding (sqft/bdft 2 decimals).
+- Width sampling every 6 in along the approved axis.
+- PNG encode contract: 3:4 aspect, 8-bit RGBA, 80% fill, shorter side ≥ 1600px when source allows; undersized source → warn + retake (no upscale).
+- Mask empty → approve blocked.
+
+### 2. Playwright (automated end-to-end, runs in the UAT container's browser)
+Walks the 5 states against a **sample photo**:
+- Add photo → Mask (set sheet + sensitivity) → approve → Length axis → approve → Measure (enter L, thickness) → Calculate.
+- Assert: PNG rendered, dimensions = 3:4, alpha present; sqft/bdft/widths equal the expected values for that fixture (within tolerance); numbers visible on screen.
+- HEIC input → "retake as JPEG" notice shown (not a crash).
+- Device draft: reload → Resume → Continue restores last approved state.
+
+### 3. Manual phone UAT (final gate)
+On a real phone (iOS Safari / Android Chrome) over the LAN UAT URL: repeat the happy path with one real slab; confirm PNG + numbers on screen. Record host + URL in `deploy/INVENTORY.md`.
+
+## Test fixtures (sample pics)
+
+Real slab photos are the fixtures (supplied by Ty from `\\truenas.local\Business\Samples`, SMB user `SMBSVC`). Each is a DJI MIMO top-down JPEG, ~4000×2256, slab on a green/black sheet.
+
+`tests/fixtures/`:
+- **sample_01 … sample_0N.JPG** — a representative handful of real slab photos (pulled on demand from the TrueNAS Samples share; do not bulk-copy the whole folder).
+- Each fixture gets a **calibration record** in `tests/fixtures/<name>.json`: the slab's true length and thickness (in inches), the sheet color, and the approved mask/axis reference — used to compute the expected `scale`, `sqft`, `bdft`, and sampled widths for assertions.
+
+The real photos drive both **bg removal** (green/black key) and **rectangle/axis calibration**. Expected values come from the calibration records, so assertions stay deterministic even on real imagery.
+
+**M1 fixture set (agreed, complete for M1):** three black-sheet slabs — one irregular (stress-tests the min-area rectangle/axis), two clean elongated. Green-sheet keying is deferred (not an M1 fixture). A 1 HEIC sample (optional) for the decode-fallback test.
+
+## Open decisions
+
+- (none outstanding for M1 as of this plan; new decisions append here)
diff --git a/tests/fixtures/dji_mimo_20260109_152422_20260109152421_1771310617476_photo.JPG b/tests/fixtures/dji_mimo_20260109_152422_20260109152421_1771310617476_photo.JPG
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diff --git a/tests/fixtures/dji_mimo_20260109_152422_20260109152421_1771310617476_photo.json b/tests/fixtures/dji_mimo_20260109_152422_20260109152421_1771310617476_photo.json
new file mode 100644
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--- /dev/null
+++ b/tests/fixtures/dji_mimo_20260109_152422_20260109152421_1771310617476_photo.json
@@ -0,0 +1,11 @@
+{
+  "fixture": "dji_mimo_20260109_152422_20260109152421_1771310617476_photo.JPG",
+  "label": "cand_a",
+  "source": "\\\\truenas.local\\Business\\Samples",
+  "orientation": "irregular",
+  "sheet": "black",
+  "image_px": [4000, 2256],
+  "length_in": 28.0,
+  "thickness_in": 2.25,
+  "notes": "Organic/irregular slab shape; stress-test for min-area bounding rectangle + length-axis. Length is the longest axis of the slab."
+}
diff --git a/tests/fixtures/dji_mimo_20260109_155754_20260109155755_1771310617107_photo.JPG b/tests/fixtures/dji_mimo_20260109_155754_20260109155755_1771310617107_photo.JPG
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diff --git a/tests/fixtures/dji_mimo_20260109_155754_20260109155755_1771310617107_photo.json b/tests/fixtures/dji_mimo_20260109_155754_20260109155755_1771310617107_photo.json
new file mode 100644
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--- /dev/null
+++ b/tests/fixtures/dji_mimo_20260109_155754_20260109155755_1771310617107_photo.json
@@ -0,0 +1,11 @@
+{
+  "fixture": "dji_mimo_20260109_155754_20260109155755_1771310617107_photo.JPG",
+  "label": "cand_c",
+  "source": "\\\\truenas.local\\Business\\Samples",
+  "orientation": "horizontal",
+  "sheet": "black",
+  "image_px": [4000, 2256],
+  "length_in": 21.0,
+  "thickness_in": 1.75,
+  "notes": "Clean elongated slab, length runs horizontally. Second clean-case fixture."
+}
diff --git a/tests/fixtures/dji_mimo_20260109_155818_20260109155817_1771310617082_photo.JPG b/tests/fixtures/dji_mimo_20260109_155818_20260109155817_1771310617082_photo.JPG
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diff --git a/tests/fixtures/dji_mimo_20260109_155818_20260109155817_1771310617082_photo.json b/tests/fixtures/dji_mimo_20260109_155818_20260109155817_1771310617082_photo.json
new file mode 100644
index 0000000..f1cfd48
--- /dev/null
+++ b/tests/fixtures/dji_mimo_20260109_155818_20260109155817_1771310617082_photo.json
@@ -0,0 +1,11 @@
+{
+  "fixture": "dji_mimo_20260109_155818_20260109155817_1771310617082_photo.JPG",
+  "label": "cand_b",
+  "source": "\\\\truenas.local\\Business\\Samples",
+  "orientation": "horizontal",
+  "sheet": "black",
+  "image_px": [4000, 2256],
+  "length_in": 21.0,
+  "thickness_in": 1.75,
+  "notes": "Clean elongated slab, length runs horizontally. Primary clean-case fixture for expected sqft/bdft/widths."
+}