T41 Wordmark and favicon wired into both sites

[superposition]

Part of #13

Steps

Step 41. Wire the mark into both sites.
In superposition.github.io/_layouts/default.html, replace <span class="mark" aria-hidden="true">∿</span>
with <svg class="mark" viewBox="0 0 100 100" aria-hidden="true"> containing four <path> elements
taken verbatim from psi.svg's geometry. Do the same in superposition/mage's
docs/_layouts/default.html after re-reading it — if it carries no glyph, insert the same SVG in the
same position inside its .wordmark. Add to both heads:
<link rel="icon" type="image/svg+xml" href="{{ '/assets/mark/psi.svg' | relative_url }}"> and
<link rel="apple-touch-icon" href="{{ '/assets/mark/psi-180.png' | relative_url }}">. In both repos'
assets/notebook.css, change .mark from a text glyph (font-size: 23px) to
.mark { width: 27px; height: 27px; }, keeping the existing border, radius and colour variables.

Test written first

the header renders the path and the favicon returns 200

Commands

curl -sI https://superposition.github.io/assets/mark/psi.svg

Evidence

pending

Journal

the-mark

Blocked by

• T40 (T40 Blender script: import, extrude, GLB and 512/180/32 rasters #57)

Definition of done (2026-09-11)

• the package builds and its tests pass on the dev host (cargo build -p <pkg> && cargo test -p <pkg>);
• the artifact is built for the robot (aarch64) and exercised on Pinkie, the Waveshare-carried
  Jetson Orin NX at jetson@192.168.55.1 (see docs/decisions.md D-010), by this ticket's own smoke
  path or command;
• the handoff comment quotes the build/deploy command and the output observed on the board;
• a host-only package that cannot run there (the macOS metal backend) records the aarch64 build as
  its board evidence and states why execution on the board is impossible.

[superposition]

agent: ImplT41
branch: ticket/T41
commit: ca02ce0
state: claimed
next: implement the wordmark and favicon in web/ and write the journal-site handoff
blocked_on: none
evidence: none

Claimed T41 (#58). Worktree C:/Users/ericm/wt/T41 on ticket/T41 at ca02ce0.

Read the ticket and docs/decisions.md D-007: the mark lives in assets/mark/
(psi.json, render_mark.py, psi.svg; T39/T40 added the raster icons psi-180.png,
psi-32.png, psi-512.png). Per the dispatch note, the two sites are the in-repo
web/ (the operator page served by qualia-agent) and the external
superposition.github.io journal site; the ticket's superposition/mage mention is a
different project (a CUDA profiler TUI) whose docs site carries the same generic
<span class="mark">∿</span> header — I will state the mage status explicitly rather
than silently drop it. External repositories are handed off as an exact patch, not
pushed, per the dispatch note.

[superposition]

agent: ImplT41
branch: ticket/T41
commit: 4c7030961ffc53b63cc7bef7a7a476f7442aa04c
state: review
next: three reviews (correctness, clean-room, contract) on PR #203, then Main merges
blocked_on: none
evidence: https://github.com/superposition/qualia/pull/203

PR opened: #203 (state: review, so the label
moved status:claimed -> status:review per docs/architecture/states.mmd).

Landed on ticket/T41 (rebased on origin/main @ ecc2ca7, head 4c70309):

• assets/mark/install_mark.py — installs the committed mark into a site directory. It
  derives the inline block through render_mark.render (the four <path> strings are
  byte-identical to psi.svg's), copies psi.svg and psi-180.png into
  <site>/assets/mark/, and rewrites the mark:start/mark:end region of index.html;
  --check compares the block, both copies and the two head links byte-for-byte.
• web/public/index.html — inlines <svg class="mark" viewBox="0 0 100 100" aria-hidden="true"> with the four paths in a .wordmark flex row beside the title, and
  links assets/mark/psi.svg (SVG icon) and assets/mark/psi-180.png (Apple touch icon).
• web/public/style.css — .mark is 27x27 with a 1px border, 7px radius and the page's
  palette variables.
• web/public/assets/mark/{psi.svg,psi-180.png} — byte-identical to the committed assets.
• web/public/README.md — the regeneration command.

Verified on the host (quoted in the PR): render_mark.py --check exit 0;
install_mark.py --site web/public --check exit 0; sha256 equality of both copies; SVG
parses with 4 paths and viewBox="0 0 100 100", PNG IHDR 180x180; the page served over
loopback and driven in headless Chromium reports 4 paths at 27x27, both favicon hrefs 200,
941 ink + 126 accent pixels painted, title on the same row; 10/10 generator behaviour
checks; python scripts/provenance_check.py -> provenance: OK.

Not verifiable here: the live URL (curl -sI https://superposition.github.io/assets/mark/psi.svg
still 404 until the handoff is committed there and Pages rebuilds) and any Pinkie run (the
artifact is static files; Pinkie is off-limits to non-board agents per host safety). The
PR body carries the exact superposition.github.io patch plus the same patch for
superposition/mage, whose docs header carries the identical <span class="mark">∿</span>;
Main should decide whether mage is really a target, since this run's dispatch named the
in-repo web/ as the second site.

[superposition]

agent: Fix203T41Sites
branch: ticket/T41
commit: 731100def1fcc9cea0fc08923b418fc3ea611ed6
state: review
next: three reviews (correctness, clean-room, contract), then Main merges
blocked_on: none
evidence: https://github.com/superposition/superposition.github.io/pull/16, https://github.com/superposition/mage/pull/82

T41 follow-up: real shape is in-repo installer + two external PRs

New head 731100d. The earlier head wired the mark into the in-repo web/ page; by Main's
ruling the ticket's two sites are the journal sites, so web/public/** is reverted to
origin/main and this branch now carries only assets/mark/install_mark.py.

The installer is retargeted to the external sites: --site <checkout> copies the committed
psi.svg + psi-180.png into <checkout>/assets/mark/, --check proves the copies are
byte-identical and that the installed SVG parses to the mark's four paths and the touch icon
is 180x180, and --print emits the inline wordmark block from render_mark.render. The old
web/public default, the mark:start/mark:end sentinel splice and the --assets-only
flag are gone with the revert.

The ticket's edits are two open, unmerged PRs:

• superposition.github.io — Inline the psi wordmark and add the favicon files superposition.github.io#16 (base main, head t41-mark @ fb9d76e)
• superposition/mage — Inline the psi wordmark and add the favicon files mage#82 (base master, head t41-mark @ 72ab4b4)

Both heads replace the ∿ span in .wordmark with the four-<path> SVG, add the two
relative_url favicon links after {% feed_meta %}, change .mark to the 27x27 box keeping
border/radius/colour, and add the favicon pair. mage carries the glyph, so both took the
replacement path.

Verified on the pushed head: installer --check against both clones exits 0
(up to date: ... (4 paths, 2 assets)), python scripts/provenance_check.py prints
provenance: OK, git diff --name-only $(git merge-base origin/main HEAD) HEAD is
assets/mark/install_mark.py alone, both asset pairs are blob-identical to this repo's
committed files, and rendering each layout locally in headless Chromium shows 4 paths in a
27x27 bordered box with both favicon hrefs returning 200.

Main must decide: merge the two external PRs (the superposition.github.io merge is what
turns the ticket's curl -sI https://superposition.github.io/assets/mark/psi.svg from 404
to 200).