Closes the second wave of HIGH-priority audit findings:
* fetchWithTimeout helper (new src/lib/fetch-with-timeout.ts) wraps
Documenso, OCR, currency, Umami, IMAP, etc. — a hung upstream can
no longer pin a worker concurrency slot indefinitely. OpenAI client
passes timeout: 30_000. ImapFlow gets socket / greeting / connection
timeouts.
* SIGTERM / SIGINT handler in src/server.ts drains in-flight HTTP,
closes Socket.io, and disconnects Redis before exit; compose
stop_grace_period bumped to 30s. Adds closeSocketServer() helper.
* env.ts gains zod-validated PORT and MULTI_NODE_DEPLOYMENT, and
filesystem.ts now reads from env (a typo can no longer silently
disable the multi-node guard).
* Per-port Documenso template + recipient IDs land in system_settings
with env fallback (PortDocumensoConfig now exposes eoiTemplateId,
clientRecipientId, developerRecipientId, approvalRecipientId).
document-templates.ts uses the per-port config and threads portId
into documensoGenerateFromTemplate().
* Migration 0042 wires the eleven HIGH-tier missing FK constraints
(documents/files/interests/reminders/berth_waiting_list/
form_submissions) plus polymorphic CHECK round 2
(yacht_ownership_history.owner_type, document_sends.document_kind),
invoices.billing_entity_id NOT EMPTY, and clients.merged_into self-FK.
Drizzle schema columns updated to .references(...) where possible
so the misleading "FK wired in relations.ts" comments are gone.
Test status: 1168/1168 vitest, tsc clean.
Refs: docs/audit-comprehensive-2026-05-05.md HIGH §§5,6,7,8,9,10 +
MED §§14,15,16,18.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
