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/01-architecture.md

@@ -193,14 +193,17 @@ neutral.
 3. **Rules:** ADRIC, ADR Chambers, ad hoc.
 4. Awards — form, reasoning, timing.
 5. **Credentialing status, stated plainly.** The Q.Arb pathway is in progress;
-   the page says so and describes what is available now versus what follows
-   designation. Honesty here is a differentiator, not a weakness — and
-   misstating it is a conduct problem. **What "available now" consists of is
-   `AGENTS.md` Q36 and is NOT yet in §4** — this line, `03-content-spec.md`, and
-   `07-fees.md` all assert co-arbitration availability off the same unverified
-   premise. Do not write it onto the page until Q36 closes.
+   the page says so. **What is available now is all three forms — sole,
+   party-appointed and co-arbitration** — and `AGENTS.md` §4 Offerings carries a
+   row for each `[verified 2026-08-26 — Pouya]`. The page states that alongside
+   the credentialing stage: Q.Arb commenced August 2026, C.Med-Arb is the
+   endpoint. §4 Offerings: **neither half may be dropped.** Honesty here is a
+   differentiator, not a weakness — and misstating it in either direction is a
+   conduct problem.
    *(This paragraph read "(co-arbitration, co-arbitration)" until 2026-08-26 —
-   edited without being re-read, which is how the unverified half travelled.)*
+   edited without being re-read — and then carried a caveat against Q36 for
+   several hours after Q36 closed. Both are recorded because the pattern is the
+   same one: an edit that was not re-read against the register.)*
 6. Fees, booking.
 
 ### `/med-arb/`