authregistry: bundle Drive OAuth services into read/download/write/admin

docs(drive): add endpoint-to-scope mapping for user OAuth

feat(auth): split Drive into granular OAuth services

authregistry: minimize Drive/Docx OAuth scopes

docs: add Drive and Docx OAuth scope references

docs(skill): prefer human-readable output over raw CLI details

fix(auth): update IM OAuth scopes (#10)

chore(maintainer): watch issue #9 in sweep

docs: add OAuth redirect URL setup for user login

docs: add OAuth redirect URL setup note

Merge maintainer sweep cron wrapper into maintainer_sweep.sh

Add cron wrapper for maintainer sweep (silent unless issues)

Add maintainer sweep script for cron reporting

Default new tasks to self-assigned so they appear in my_tasks

Fix tasklist OAuth scopes: include read+write for full