red/.planning/phases/06-signing-flow/06-01-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
06-signing-flow	01	database	jwt jose postgres drizzle pdf sha256 audit signature_pad react-email	phase provides 05-pdf-fill-and-field-mapping documents table with signatureFields, preparedFilePath, @cantoo/pdf-lib installed	signingTokens PostgreSQL table (jti pk, documentId FK, expiresAt, usedAt) auditEvents PostgreSQL table with 6-value audit_event_type enum signedFilePath, pdfHash, signedAt columns on documents table createSigningToken() — HS256 JWT creation with jti stored in DB verifySigningToken() — JWT verification, throws on expired/invalid logAuditEvent() — typed audit event insert with server-side timestamp embedSignatureInPdf() — embeds PNG sigs into PDF, returns SHA-256 hex digest signature_pad, @react-email/render, @react-email/components installed	06-02 06-03 06-04 06-05	added patterns signature_pad @react-email/render @react-email/components jose HS256 JWT with jti stored in DB for one-time-use enforcement atomic rename (tmp -> final path) for PDF writes prevents corruption SHA-256 hash computed from disk after atomic rename (not from in-memory bytes) server-side defaultNow() for audit timestamps — never accept timestamp from client	created modified teressa-copeland-homes/src/lib/signing/token.ts teressa-copeland-homes/src/lib/signing/audit.ts teressa-copeland-homes/src/lib/signing/embed-signature.ts teressa-copeland-homes/drizzle/0005_signing_flow.sql teressa-copeland-homes/src/lib/db/schema.ts teressa-copeland-homes/package.json	SIGNING_JWT_SECRET uses a real openssl rand -base64 32 value (not placeholder) — generated at plan execution time auditEventTypeEnum defined before auditEvents table — pgEnum must precede referencing table in schema.ts jose already present as next-auth transitive dependency — no reinstall needed Migration file renamed from drizzle-kit default to 0005_signing_flow.sql for readability; journal updated to match	Signing utilities live in src/lib/signing/ — server-only, never imported from client components JWT jti stored in signingTokens table on createSigningToken — enables one-time-use enforcement in later plans Audit log uses server defaultNow() exclusively — createdAt never passed from caller	SIGN-02 LEGAL-01 LEGAL-02	2min	2026-03-20

Phase 6 Plan 01: Signing Foundation Summary

PostgreSQL signing tables (signingTokens, auditEvents), three new documents columns, and server-side utilities for HS256 JWT token creation, typed audit logging, and atomic PDF signature embedding with SHA-256 hash

Performance

• Duration: 2 min
• Started: 2026-03-20T17:22:43Z
• Completed: 2026-03-20T17:25:09Z
• Tasks: 2
• Files modified: 6

Accomplishments

• Migration 0005_signing_flow.sql applied — signingTokens and auditEvents tables live in PostgreSQL
• documents table extended with signedFilePath, pdfHash, signedAt columns
• Three signing utilities created and compile cleanly: token.ts, audit.ts, embed-signature.ts
• signature_pad, @react-email/render, @react-email/components installed for Phase 6 plans 02-05

Task Commits

Each task was committed atomically:

1. Task 1: Install packages + extend schema + generate migration - fa68a1b (feat)
2. Task 2: Create signing utility library (token + audit + embed) - 2929581 (feat)

Plan metadata: (docs commit — see below)

Files Created/Modified

• teressa-copeland-homes/src/lib/db/schema.ts - Added auditEventTypeEnum, signingTokens table, auditEvents table; added signedFilePath/pdfHash/signedAt to documents table
• teressa-copeland-homes/drizzle/0005_signing_flow.sql - Migration file adding all new tables and columns
• teressa-copeland-homes/drizzle/meta/_journal.json - Updated journal tag to 0005_signing_flow
• teressa-copeland-homes/drizzle/meta/0005_snapshot.json - Generated drizzle snapshot
• teressa-copeland-homes/src/lib/signing/token.ts - createSigningToken() and verifySigningToken() using jose HS256
• teressa-copeland-homes/src/lib/signing/audit.ts - logAuditEvent() with typed enum + server-side timestamp
• teressa-copeland-homes/src/lib/signing/embed-signature.ts - embedSignatureInPdf() with atomic write and SHA-256 hash (LEGAL-02)
• teressa-copeland-homes/package.json - Added signature_pad, @react-email/render, @react-email/components

Decisions Made

• jose was already installed as a transitive dependency of next-auth — skipped reinstall
• Migration filename renamed from drizzle-kit default 0005_abandoned_albert_cleary.sql to 0005_signing_flow.sql; drizzle/meta/_journal.json updated to match — drizzle-kit migrate uses the journal tag, not filename, so this is safe
• SIGNING_JWT_SECRET generated with openssl rand -base64 32 (real value, not placeholder) and added directly to .env.local
• auditEventTypeEnum positioned before auditEvents table in schema.ts — pgEnum must precede referencing table per established project convention (see Phase 3 decision log)

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None.

User Setup Required

SIGNING_JWT_SECRET has been added to .env.local with a real generated value. No additional manual setup required for this plan.

When Phase 6 goes to production, the secret must be set in the Docker server environment. The .env.local value can be reused or regenerated.

Next Phase Readiness

Phase 6 foundation is fully in place:

• signingTokens and auditEvents tables in PostgreSQL (migration 0005 applied)
• documents table has signedFilePath, pdfHash, signedAt columns
• createSigningToken, verifySigningToken, logAuditEvent, embedSignatureInPdf all compile
• npm run build passes cleanly
• Plans 02-05 can now import from @/lib/signing/token, @/lib/signing/audit, and @/lib/signing/embed-signature

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Phase: 06-signing-flow Completed: 2026-03-20