docs(claude-md): correct /api/public/health response shape note

The route is dual-mode — anonymous probes get a minimal `{status,
timestamp}` (so uptime monitors that can't carry the secret keep
working and never 503 on the platform), authenticated probes
(timing-safe X-Intake-Secret match against WEBSITE_INTAKE_SECRET) get
the full `{status, env, appUrl, timestamp, checks}` envelope and a
503 on hard dependency failures. Old doc only described the second
shape and didn't mention the secret gate.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -97,7 +97,7 @@ src/
 - **Route handler exports:** Next.js App Router `route.ts` files only allow specific named exports (`GET|POST|…`). Service-tested handler functions live in sibling `handlers.ts` files (e.g. `src/app/api/v1/yachts/[id]/handlers.ts`) and are imported by the colocated `route.ts` for `withAuth(withPermission(...))` wrapping. Integration tests import from `handlers.ts` directly to bypass auth/permission middleware.
 - **Multi-berth interest model:** `interest_berths` is the source of truth for which berths an interest is linked to; `interests.berth_id` does not exist (dropped in migration 0029). Three role flags: `is_primary` (≤1 row per interest, enforced by partial unique index — surfaces as "the berth for this deal" in templates / forms / list views), `is_specific_interest` (true → berth shows as "Under Offer" on the public map; false → legal/EOI-only link), `is_in_eoi_bundle` (covered by the interest's EOI signature). Read/write through `src/lib/services/interest-berths.service.ts` helpers (`getPrimaryBerth`, `getPrimaryBerthsForInterests`, `upsertInterestBerth`, `setPrimaryBerth`, `removeInterestBerth`); never query `interest_berths` from outside that service.
 - **Mooring number canonical format:** `^[A-Z]+\d+$` (e.g. `A1`, `B12`, `E18`) — no hyphen, no leading zeros. Stored, displayed, URL-encoded, and rendered in EOIs in this exact form. Phase 0 normalized the entire CRM dataset; the mooring-pattern regex gates the public `/api/public/berths/[mooringNumber]` route before any DB hit.
-- **Public berths API:** `/api/public/berths` (list) and `/api/public/berths/[mooringNumber]` (single) are the public-facing data feed for the marketing website. Output shape mirrors the legacy NocoDB Berths shape verbatim (`"Mooring Number"`, `"Side Pontoon"`, etc.) — see `src/lib/services/public-berths.ts`. Cache headers: `s-maxage=300, stale-while-revalidate=60`. Status mapping: `"Sold"` (berth.status=sold) > `"Under Offer"` (status=under_offer OR has any active `interest_berths.is_specific_interest=true` link with `interests.outcome IS NULL`) > `"Available"`. The companion `/api/public/health` endpoint returns `{env, appUrl}` so the website refuses to start when its `CRM_PUBLIC_URL` points at a different deployment env.
+- **Public berths API:** `/api/public/berths` (list) and `/api/public/berths/[mooringNumber]` (single) are the public-facing data feed for the marketing website. Output shape mirrors the legacy NocoDB Berths shape verbatim (`"Mooring Number"`, `"Side Pontoon"`, etc.) — see `src/lib/services/public-berths.ts`. Cache headers: `s-maxage=300, stale-while-revalidate=60`. Status mapping: `"Sold"` (berth.status=sold) > `"Under Offer"` (status=under_offer OR has any active `interest_berths.is_specific_interest=true` link with `interests.outcome IS NULL`) > `"Available"`. The companion `/api/public/health` endpoint is dual-mode: anonymous callers get `{status, timestamp}` (uptime monitors, never 503); requests carrying a timing-safe-matched `X-Intake-Secret` (compared against `WEBSITE_INTAKE_SECRET`) get the full `{status, env, appUrl, timestamp, checks: {db, redis}}` payload and a 503 if any dependency is down. The website uses the authenticated form on startup so it refuses to start when its `CRM_PUBLIC_URL` points at a different deployment env.
 - **Berth recommender:** Pure SQL ranking (no AI). Lives in `src/lib/services/berth-recommender.service.ts`. Tier ladder A/B/C/D classifies each feasible berth based on its `interest_berths` aggregates. Heat scoring (recency / furthest stage / interest count / EOI count) only fires for tier B (lost/cancelled-only history); per-port admin tunes weights via `system_settings` keys (`heat_weight_*`, `recommender_max_oversize_pct`, `recommender_top_n_default`, `fallthrough_policy`, `fallthrough_cooldown_days`, `tier_ladder_hide_late_stage`). The recommender enforces multi-port isolation both at the entry point (rejects cross-port interest lookups) AND inside the SQL aggregates CTE (defense-in-depth `i.port_id` filter).
 - **EOI bundle / range formatter:** Multi-berth EOIs render the in-bundle berth set as a compact range string ("A1-A3, B5-B7") via `formatBerthRange()` in `src/lib/templates/berth-range.ts`. Used only inside the Documenso `Berth Range` form field — CRM UI always shows berths as individual chips. The `{{eoi.berthRange}}` token is in `VALID_MERGE_TOKENS`.
 - **Pluggable storage backend:** Code never imports MinIO/S3 directly. All file I/O goes through `getStorageBackend()` from `src/lib/storage/`. Configured via `system_settings.storage_backend` ('s3' | 'filesystem'). Switching backends is a settings change + `pnpm tsx scripts/migrate-storage.ts` run. **Filesystem backend is single-node only**: refuses to start when `MULTI_NODE_DEPLOYMENT=true`. Multi-node deployments must use the s3-compatible backend.