0.3.5

release: 0.3.5

One process, captures that clean up after themselves, and a pin number the user
types. CHANGELOG gets a Removed section for the first time, because a watchdog
disappearing is something a user sees in Task Manager rather than an internal
tidy-up.

Version, ROADMAP baseline, the nine READMEs, the site in nine languages, the
site validator's release pins, docs/README.md and the handoff all move together.

docs/README.md was stale from before the 0.3.4 release — it still described
0.3.4 as unreleased work on a branch, at rc.33, with 0.3.3 as the public build.
The gate caught it, which is what the gate is for.

The Chrome extension is unchanged in 0.3.5, so its manifest stays at 0.3.4 and
frame-geometry-check keeps pinning that: a version bump the extension did not
earn would ask every browser to reload for nothing.

Public state in the handoff still names 0.3.4 — that is true until the release
workflow finishes, and it is filled in from the published artefacts afterwards.

Gate: PASSED, 0 failed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>