Stage 9's release (D311, D313). Every stage before it landed as `feat:`,
so the release engine, which reads non-merge subjects since v0.1.0, would
cut v0.2.0 at the cutover. This commit's `!` makes it v1.0.0, as the plan
and the README say (the org lead's choice, 2026-10-09).
The README's status line now says v1.0.0, and its Releases section says
how the number was reached. No code changes.
BREAKING CHANGE: 1.0.0 is the release a Runic Gateway server requires.
module-rust refuses every Place NPCs step on a server without RunicNPC
(D310), and the bridge declares API 6 as its floor. Nothing in the API
itself changes shape here: it stays version 6.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY
