[rianjs]

Summary

• internal/api/calendar: ToAPIEvent, the inverse of ParseEvent, with round-trip tests; a Service() accessor so the write wrapper reuses the authenticated transport (same pattern as Gmail).
• internal/rw/calendar: Client embeds the read client and adds CreateEvent, UpdateEvent (patch semantics), DeleteEvent.
• internal/rwcmd/calendar: wraps cmd/calendar.NewCommand() and adds create (DTO-named flags, --summary and --start required, a date makes an all-day event, --end defaults to +1h or next day), update <id> (only changed flags are sent), and delete <id>... (--stdin, typed confirmation unless --yes). Every leaf has --dry-run/-n and previews without constructing a client.
• gro calendar events|today|week gain --ids for piping.
• grw now registers calendar, me, and profiles, and requests calendar.readonly, calendar.events, and userinfo.profile.
• Architecture tests cover the new pair and packages; README, WORKSPACE_ADMINS, and architecture docs updated.

Closes #6

Test plan

• make check and make test-cover-check pass; go test ./internal/architecture/ -v passes
• grw calendar --help shows every gro leaf plus create/update/delete; gro calendar --help unchanged
• grw calendar create --summary x --start 2026-10-01 --dry-run previews without touching the keyring
• Live create/update/delete against a real calendar not run

[monit-reviewer]

Automated PR Review

Reviewed commit: 9d0de2e

Summary

No issues found.

---

Completed in 10m 14s | $2.83 | sonnet | daemon 0.2.142 | Glorfindel

Field	Value
Model	sonnet
Reviewers	hybrid-synthesis, harness-engineering:harness-architecture-reviewer, harness-engineering:harness-enforcement-reviewer, harness-engineering:harness-knowledge-reviewer, harness-engineering:harness-self-documenting-code-reviewer, security:security-code-auditor, documentation:docs-reviewer
Engine	claude · sonnet
Reviewed by	pr-review-daemon · monit-pr-reviewer
Duration	10m 14s wall · 10m 09s compute (Reviewers: 10m 01s · Synthesis: 8s)
Cost	$2.83 (estimated)
Tokens	575.9k in / 11.2k out
Turns	13

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harness-engineering:harness-knowledge-reviewer	sonnet	102.0k	2.4k	22.5k	79.5k (1h)	$0.52
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