docs(alerts): rules + CLAUDE.md — inbox redesign, V17 migration
- .claude/rules/ui.md: rewrite Alerts section — sidebar trims to
Inbox/Rules/Silences, InboxPage description updated (4 filters, row
actions, bulk toolbar, soft-delete undo), SilenceRuleMenu documented,
SilencesPage ?ruleId= prefill noted.
- CLAUDE.md: V17 migration entry describing enum/column/table/index
changes for the inbox redesign.
- .claude/rules/app-classes.md AlertController bullet already updated
in the T6 drive-by.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>