#21123: Docs/CI/MSTeams: close low-hanging parity gaps and add guardrails

## Summary This PR batches three low-risk repo hygiene improvements: 1. Labeler parity for extension plugins - Add missing labeler mapping: - `extensions: thread-ownership` -> `extensions/thread-ownership/**` 2. Docs navigation parity for channel pages - Add existing channel docs to Mintlify sidebar (`docs/docs.json`): - `channels/bluebubbles` - `channels/nextcloud-talk` - `channels/nostr` - `channels/tlon` - `channels/twitch` 3. Drift guardrail check (docs + labeler) - Add `scripts/docs-consistency-check.mjs` to enforce: - every `docs/channels/*.md` page (except `index`) exists in `docs/docs.json` navigation - every plugin extension (`extensions/*/openclaw.plugin.json`) has a `.github/labeler.yml` mapping for `extensions/<name>/**` - Wire into docs checks via: - `package.json` -> `docs:check-consistency` - `package.json` -> `check:docs` now includes `pnpm docs:check-consistency` 4. MS Teams quick safety fix for OneDrive simple upload - Add explicit guard for files larger than 4MB in `uploadToOneDrive` (`extensions/msteams/src/graph-upload.ts`) - Add targeted unit tests in `extensions/msteams/src/graph-upload.test.ts` ## Why - Improves triage labeling accuracy. - Restores docs discoverability for existing channel pages. - Prevents future nav/labeler drift with an automated check. - Fails fast and clearly for a known OneDrive upload size limitation. ## Validation - `node scripts/docs-consistency-check.mjs` -> passes (`consistency_failures=0`) - `pnpm exec vitest run extensions/msteams/src/graph-upload.test.ts` -> 2 tests passed ## AI Transparency AI-assisted: yes Testing: lightly tested (targeted checks above) <!-- greptile_comment --> <h3>Greptile Summary</h3> Batches low-risk hygiene improvements: adds missing labeler mapping for `extensions/thread-ownership`, adds 5 channel docs to Mintlify nav (`bluebubbles`, `nextcloud-talk`, `nostr`, `tlon`, `twitch`), introduces `scripts/docs-consistency-check.mjs` to prevent future nav/labeler drift, and adds a 4MB size guard to OneDrive uploads. Key changes: - `.github/labeler.yml`: adds `extensions: thread-ownership` mapping - `docs/docs.json`: adds 5 missing channel pages to navigation - `scripts/docs-consistency-check.mjs`: enforces consistency between channel docs and nav, and between plugin extensions and labeler mappings - `package.json`: wires consistency check into `check:docs` - `extensions/msteams/src/graph-upload.ts`: adds 4MB size validation for `uploadToOneDrive` - `extensions/msteams/src/graph-upload.test.ts`: adds unit tests for size guard Issues found: - `uploadToSharePoint` uses the same simple upload API but lacks the 4MB size guard that was added to `uploadToOneDrive` <h3>Confidence Score: 4/5</h3> - Safe to merge with one fix recommended for SharePoint upload consistency - The PR makes simple, low-risk improvements (labeler/docs parity, automated consistency checks, size validation). All changes are well-tested and defensive. The missing size guard for `uploadToSharePoint` should be addressed but doesn't introduce new risk since it's an existing gap. - Fix the missing 4MB size guard in `extensions/msteams/src/graph-upload.ts` for the `uploadToSharePoint` function _{Last reviewed commit: 979a916} <!-- greptile_other_comments_section --> <!-- /greptile_comment -->