* fix(gdrive): validate folder access, run config test, harden Drive API
Connection test and setup validation now verify folder_id resolves to an accessible Drive folder before counting Docs, via a shared verifyGdriveFolderAndCountDocs helper, so a wrong or unshared folder fails instead of passing with 0 docs.
Move gdrive-config.test.ts under test/ so Vitest's test/** glob actually runs it; escape folder_id in the Drive query; add retry/backoff on transient Google API responses; and record skipped non-Google-Doc files in the staged manifest.
* chore: sync uv.lock to ktx-daemon/ktx-sl 0.13.1