Files
daddy f6c55d888f Add Groups API router: create/join/leave, roles, transfer, group page
Implements docs/planning/social.md US-5's API layer on top of the
already-merged Group/GroupMember models (app/models/groups.py):

- POST/GET /api/groups, GET/PATCH/DELETE /api/groups/{id}
- POST .../join (idempotent), .../leave (owner must transfer first)
- POST .../members/{user_id}/role (owner-only, admin/member),
  .../transfer (owner-only, demotes prior owner to admin)

Group page member list is a dedicated schema (user_id/username/role/
joined_at) so no private User fields leak. 27 new tests cover
authorization boundaries, idempotency, and exactly-one-owner invariants;
full backend suite (220 tests) passes with zero regressions.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QFSPt6rX1gwZmcr2HEfvzg
2026-09-15 01:09:29 +00:00
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