fix: replace the traced infinity mark with the real artwork; add §4 Offerings

Q32 — the traced mark was a WRONG SHAPE and had shipped. Pouya compared
it against the master and rejected it. Two grounds reproduce from the
path and are verified here: all four cubic branches meet the origin at
exactly 90 degrees, so the loops are tangent rather than crossing and at
stroke-width 28 render as two kissing circles (signed crossing number 0;
the strokes fuse across 61% of the mark's height at 2rem); and the
master's ink bbox is 2668x1704 = 1.5657:1. The path is deleted, not kept
as a fallback.

Pouya's 1.23:1 figure is reconciled rather than left dangling: it is the
bounding box of the path's COORDINATES, not the curve. Control points sit
at y +/-160 where the curve reaches +/-120, so the hull is 400x320 and
with stroke 428x348 = 1.2299. A trap rather than a slip — x is monotone,
so the control points give the right width and a 33% inflated height, and
the "does the width look right" check passes.

The real artwork is now in the repo: master, tight crop (the render
source, so the file's aspect ratio IS the mark's), full lockup, and the
SVG. InfinityMark renders AVIF/WebP; a Retina device takes 3,063 B.
Favicons regenerated; favicon.svg deleted.

Q33/Q36 — Pouya accepts arbitration appointments now. §4 gains an
Offerings category: competence for an offering, permission for a
credential, with an explicit boundary so it cannot become a route around
D13. The masthead tagline is restored, and the footer designation strip
now carries "Q.Arb — commenced August 2026" so §4's paired-disclosure
condition is actually met on every page rather than only asserted.

Two conventions added to CLAUDE.md, both earned this session: anything a
spec makes a claim about must be reachable from the repo (R14 — the
traced mark survived two review passes because the artwork was not here
to compare against); and a command that did not run is not evidence of
absence (`timeout` is not installed on macOS, so four Drive reads never
executed and were reported as an empty directory).

Reviews: claims-auditor FAIL/13 and adversarial-reviewer 2 blocking, all
resolved. The severe one was self-inflicted — `flex: none` landed on the
<img> while <Picture>'s <picture> wrapper is the flex item, so the logo
compressed to 28.5x32 at 1024px with seven nav items. The page-level
overflow check passed throughout because the brand block absorbed the
deficit by crushing the mark. Harness now asserts rendered aspect ratio.

Opened: Q38, Q39. Closed: Q32, Q33, Q36. Narrowed: Q35. Added: R13, R14.
AGENTS.md entry (v) carries a RESUME HERE section.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012XquaEq4BgWMCwUqLEyNkF

docs/reference/brand-assets.md

@@ -0,0 +1,92 @@
+# Brand assets — provenance
+
+The repository holds the artwork it makes claims about. That is not tidiness: it
+is `CLAUDE.md`'s rule and `AGENTS.md` R14, and this file exists because the
+infinity mark was reconstructed wrongly and **two adversarial review passes could
+not catch it**, since the real artwork was not in the repo to compare against.
+
+**Every measurement below is `[verified 2026-08-26]`** — computed with `sharp`
+against the files in this repository, and re-derivable by anyone from the
+commands given. Nothing here is quoted from an external source.
+
+## Files
+
+| File | What it is | Use |
+|---|---|---|
+| `src/assets/brand/sml-infinity-mark-master.png` | The mark as supplied: **3000 × 3000, alpha**, mark inset within the canvas | **The master.** Committed so the crop below can be re-derived and checked in-repo, not taken on trust |
+| `src/assets/brand/sml-infinity-mark.png` | The same mark tight-cropped to its ink bounding box: **2668 × 1704, alpha, 1.5657:1** | **The render source.** `InfinityMark.astro` feeds it to Astro's `<Picture>` |
+| `src/assets/brand/sml-logo-full.png` | Mark **plus** the "SML Company" wordmark, 3000 × 3000, alpha; ink bbox 2414 × 1440 = 1.676:1 | Not currently rendered. Held for the OG-image template (`docs/04`) and print |
+| `src/assets/brand/sml-logo-source.svg` | 1500 × 1500 viewBox, **257,278 bytes** | Reference. Faithful, but not what is served — see below |
+
+## Reproducing the crop, in-repo
+
+The crop is derived, so it is re-derivable — and now from a file that is here,
+which is the whole point of R14. Scan the master for the first and last pixel
+that is neither transparent (`alpha < 24`) nor near-white (`r,g,b > 243`):
+
+```
+ink bbox of sml-infinity-mark-master.png -> 2668 x 1704 at (159, 646)
+sharp(master).extract({ left: 159, top: 646, width: 2668, height: 1704 })
+```
+
+Crop to that box and the file's own aspect ratio becomes the mark's, so layout
+can be tuned against the asset directly rather than against a number written
+down beside it. `InfinityMark.astro` pins `aspect-ratio: 667 / 426`, which is
+`2668 / 1704` reduced — **1.56573**.
+
+## Why the SVG is held but not served
+
+It renders **faithfully**. Rasterised at 8333 px it reproduces the master
+exactly, at the same **1.566:1**. It is not bad artwork, and an earlier version
+of this file implied it was; that was wrong.
+
+What rules it out is weight and composition:
+
+- **257,278 bytes**, against **9,468 bytes** for the AVIF a browser actually
+  takes at the size the mark renders. **27×.**
+- **7 embedded base64 PNGs** (`<image>` elements), so it is a hybrid rather than
+  pure vector — inlining it would breach `CLAUDE.md`'s rule against
+  base64-inlining images, which is one of the specific faults of the build this
+  project replaces.
+- 10 `<linearGradient>` carrying **1,225 `<stop>`** elements, 64 `<path>`,
+  59 `<clipPath>`, 23 `<mask>`, 1 `<filter>`. Expensive to rasterise.
+
+What `AGENTS.md` Q38 asks for is a master that is faithful **and** light.
+
+## What the browser actually downloads
+
+`<Picture>` emits AVIF, WebP and a PNG fallback at 1× and 2× of a 320 px
+intrinsic width:
+
+| | 1× (64 px) | 2× (128 px) | 3× (192 px) |
+|---|---|---|---|
+| AVIF | **1,720 B** | **3,063 B** | **4,843 B** |
+| WebP | 2,368 B | 5,368 B | 8,664 B |
+| PNG (fallback) | 6,137 B | 16,996 B | 29,780 B |
+
+A Retina device takes **3,063 B**. The first attempt sized the ladder at 320 px
+— justified by a 4 rem sample on the proof sheet, a page step 2 deletes — and
+stacked `densities` on top, so every DPR-2 device pulled a 640 px image into a
+56 px slot: **20,629 B**, and the docs claimed 9 KB because that is what DPR 1
+takes. Size to the largest render that survives, and quote the figure for the
+devices the budget targets.
+
+Passing an explicit `width` is load-bearing: without it Astro emits the
+untouched 2668 px master as the `<img src>` fallback — **1,146,406 bytes** —
+which any client without AVIF or WebP support would actually download.
+
+## The colours are the artwork's, not the palette's
+
+`tokens.css` is not involved. The ribbon carries its own gradient and it is
+close to but not identical with `--maroon` `#5a1a1c` and `--gold` `#c9a876`.
+Do not "correct" the artwork toward the tokens, and do not derive tokens from
+the artwork — D7 keeps the palette *and* the mark, as they are.
+
+## Where these came from
+
+Supplied by Pouya. `sml-logo-source.svg` was added by him directly to the repo;
+the PNGs were taken from the `smlcompany.ca` Google Drive, under `SML/Designs/`
+and `Research/Law/ADR Personal Branding Project/`. **The Drive copies are not the
+record — these files are.** That is the point of R14: an artefact that lives only
+in Drive cannot be compared against a claim by any reviewer, which is exactly how
+the traced mark survived two review passes.