red/.planning/phases/14-multi-signer-schema/14-01-SUMMARY.md

phase, plan, subsystem, tags, dependency_graph, tech_stack, key_files, decisions, metrics

phase	plan	subsystem	tags	dependency_graph	tech_stack	key_files	decisions	metrics
14-multi-signer-schema	01	database-schema	schema drizzle multi-signer migration	requires provides affects multi-signer-schema-columns DocumentSigner-interface getSignerEmail-helper phase-15-backend phase-16-ui	added patterns additive-nullable-columns jsonb-typed-columns safe-reader-helper	created modified teressa-copeland-homes/drizzle/0010_sharp_archangel.sql teressa-copeland-homes/drizzle/meta/0010_snapshot.json teressa-copeland-homes/src/lib/db/schema.ts	documents.signers JSONB shape is { email, color }[] — not string[] — so Phase 16 can retrieve consistent per-signer colors from DB without recalculating signingTokens.signerEmail is nullable TEXT — NULL = legacy single-signer token, no existing token creation code requires changes documents.completionTriggeredAt is nullable TIMESTAMP used as atomic completion guard in Phase 15 UPDATE...WHERE completionTriggeredAt IS NULL SignatureFieldData.signerEmail? follows exact same additive-nullable pattern as type? — zero breakage to existing JSONB field rows No Partially Signed status added to documentStatusEnum — partial state computed dynamically in Phase 16 by counting used tokens	duration completed_date tasks_completed files_modified 5 min 2026-04-03 2 3

Phase 14 Plan 01: Multi-Signer Schema Summary

Additive Drizzle migration 0010 adding signerEmail to SignatureFieldData and signingTokens, plus signers JSONB and completionTriggeredAt to documents — all nullable, zero backfills, TypeScript compiles cleanly.

What Was Built

Three new nullable database columns and one TypeScript interface extension, establishing the data foundation for Phases 15 (sign handler rewrite) and 16 (multi-signer UI):

1. SignatureFieldData.signerEmail?: string — optional field ownership routing (absent = legacy single-signer)
2. getSignerEmail(field, fallbackEmail) helper — safe reader following the same pattern as getFieldType()
3. DocumentSigner interface — { email: string; color: string }[] shape for the signers JSONB array
4. documents.signers JSONB — per-signer list with assigned colors; NULL = legacy single-signer document
5. documents.completionTriggeredAt TIMESTAMP — atomic completion guard for Phase 15's race-safe handler
6. signingTokens.signerEmail TEXT — per-token signer identity; NULL = legacy single-signer token

Migration 0010_sharp_archangel.sql contains exactly 3 ALTER TABLE...ADD COLUMN statements — no DROPs, no ALTER TYPEs, no backfills.

Tasks

Task	Name	Commit	Files
1	Add multi-signer types and columns to schema.ts	c658f13	src/lib/db/schema.ts
2	Generate Drizzle migration and apply it	3639491	drizzle/0010_sharp_archangel.sql, drizzle/meta/_journal.json, drizzle/meta/0010_snapshot.json

Decisions Made

• documents.signers uses { email, color }[] JSONB shape so Phase 16 PreparePanel can render consistent signer-assigned colors without recalculating by index position
• signerEmail on SignatureFieldData is optional (not required) so every existing JSONB field row stored in the DB remains valid with no migration needed
• completionTriggeredAt is Phase 14 schema-only; write logic (UPDATE...WHERE...IS NULL RETURNING) is Phase 15 scope
• No Partially Signed enum value added — computed dynamically by counting usedAt IS NOT NULL tokens in Phase 16

Verification Results

• npx tsc --noEmit exits 0 — no TypeScript errors
• grep -c signerEmail src/lib/db/schema.ts returns 6 (>= 3 required)
• Migration SQL contains only ALTER TABLE...ADD COLUMN — no DROPs
• Migration applied successfully to local Postgres instance
• No files outside schema.ts and drizzle/ were modified

Deviations from Plan

None — plan executed exactly as written.

Known Stubs

None — this plan is schema-only with no UI or data-rendering code paths.

Self-Check: PASSED

• teressa-copeland-homes/src/lib/db/schema.ts — FOUND (modified)
• teressa-copeland-homes/drizzle/0010_sharp_archangel.sql — FOUND (created)
• teressa-copeland-homes/drizzle/meta/0010_snapshot.json — FOUND (created)
• Commit c658f13 — FOUND
• Commit 3639491 — FOUND