feat(db): mesh data model — meshes, members, invites, audit log

- pgSchema "mesh" with 4 tables isolating the peer mesh domain
- Enums: visibility, transport, tier, role
- audit_log is metadata-only (E2E encryption enforced at broker/client)
- Cascade on mesh delete, soft-delete via archivedAt/revokedAt

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.context/turbostarter-framework-context/CLAUDE.md

@@ -0,0 +1,41 @@
+# TurboStarter Framework Context
+
+TurboStarter framework documentation for AI context loading.
+
+## When to Read More
+
+**Read `index.md`** if you need to:
+- Find TurboStarter documentation on a specific topic
+- Search by keyword (auth, database, billing, api, etc.)
+- Understand what documentation is available
+
+**Read `framework.md`** for:
+- pnpm commands and workflows
+- Monorepo structure
+- Code conventions
+
+## Quick Reference
+
+| Need | Read |
+|------|------|
+| Commands & patterns | `framework.md` |
+| Authentication | `sections/web/auth/` |
+| Database/Drizzle | `sections/web/database/` |
+| API/Hono | `sections/web/api/` |
+| Billing/Stripe | `sections/web/billing/` |
+| UI Components | `sections/web/ui/` |
+| Organizations | `sections/web/organizations/` |
+| i18n | `sections/web/i18n/` |
+| Mobile | `sections/mobile/` |
+
+## Refreshing
+
+```bash
+python .context/turbostarter-framework-context/refresh-docs.py
+```
+
+## Notes
+
+- These docs are **subordinate** to `.context/CLAUDE.md`
+- Adapt patterns to match existing codebase, don't copy verbatim
+- When in doubt, check the actual code in `packages/` and `apps/`