ci: set up OpenWiki generation

[reeseherber]

What this adds

The hardened OpenWiki workflow copied verbatim from psd401/psd401-prr: openwiki@0.2.0 pinned, Bedrock OpenAI-compatible endpoint (us-west-2, serving zai.glm-5), push-to-default plus weekly Monday cron, rolling docs PR via peter-evans/create-pull-request, and a secret gate that skips cleanly until the key is configured. Also adds a .openwiki/ scratch-dir line to .gitignore (the generated openwiki/ tree without the dot stays tracked).

REQUIRED FOLLOW-UP (org admin — Kris)

• Add this repo to the selected-repositories list of the org secret BEDROCK_API_KEY (or add a repo-level BEDROCK_API_KEY secret). Must be a LONG-TERM Bedrock key — short-term keys expire within 12h and strand the schedule.
• Confirm Settings → Actions → "Allow GitHub Actions to create and approve pull requests" is enabled for this repo.

Seeding

The initial openwiki/ tree should be generated locally and committed, along with a wiki pointer in CLAUDE.md under a Documentation section (the aistudio PR documenso#1163 pattern; full first-generation is deliberately not run in CI). Until seeded, --update runs bootstrap by model judgment — review the first rolling PR carefully or seed manually.

Warning

Running openwiki code --init locally clobbers this hardened workflow with the stock template. Never accept that rewrite; restore this version.

[gemini-code-assist]

Caution

The consumer version of Gemini Code Assist on GitHub has been sunset. All code review activity has officially ceased.