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- kvitt-server invite-partner: a partner invite by the admin as E-12 does (cancels the pending one, 72 h, link with ?from=<admin>), exit 2 household full, 3 no admin; README lines in server/ and infra/. - Tests: invite-partner, migrate (schema at SCHEMA_VERSION, idempotent), healthcheck (200, 503, nothing listening), serve SIGTERM drain (in-flight request finishes, new connections refused, exit 0; gives up after SHUTDOWN_DRAIN). - Push sender: one info line "push sent" per message with push_type, devices_sent, devices_targeted and 8-character device-id tails (SPEC §8.7 aggregates); per-device line stays at debug. - tools/contracts-check.py: stale TODO(spec) replaced by the §9.11 CS-5 citation; shapes updated for invite_kind (D-086), app_version_name (D-090) and fid (D-096), 134 checks pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TQd3pEP9UeN2uifbHknQ7B