red/.planning/phases/06-signing-flow/06-03-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	03	ui	react-pdf pdfjs signing jwt audit overlay animation next-app-router	phase provides 06-signing-flow/06-01 verifySigningToken(), logAuditEvent(), signingTokens table, SignatureFieldData schema	/sign/[token] public route with three states (expired/used/pending) Server component token validation before any UI renders SigningPageClient full-scroll react-pdf viewer + pulsing blue field overlays + sticky progress bar SigningProgressBar sticky bottom bar with X/Y count + jump-to-next + submit button GET /api/sign/[token] token validation data route + audit event logging GET /api/sign/[token]/pdf token-authenticated PDF streaming route	06-04 06-05	added patterns react-pdf used with dynamic import (ssr:false) via SigningPageClientWrapper — prevents SSR crashes from browser-only canvas/worker APIs PDF coordinate conversion screenTop = renderedH - (field.y * scaleY) - (field.height * scaleY); origin flip from PDF bottom-left to screen top-left CSS keyframes injected via <style> tag inside client component for pulse-border animation Token-authenticated PDF serving via /api/sign/[token]/pdf — no agent auth, signed token grants file access Path traversal guard on PDF file serving (checks for .. in stored relative path)	created modified teressa-copeland-homes/src/app/api/sign/[token]/route.ts teressa-copeland-homes/src/app/api/sign/[token]/pdf/route.ts teressa-copeland-homes/src/app/sign/[token]/page.tsx teressa-copeland-homes/src/app/sign/[token]/_components/SigningPageClient.tsx teressa-copeland-homes/src/app/sign/[token]/_components/SigningPageClientWrapper.tsx teressa-copeland-homes/src/app/sign/[token]/_components/SigningProgressBar.tsx	SigningPageClientWrapper uses dynamic import (ssr:false) — react-pdf uses browser APIs (canvas, pdfjs worker) that cannot run server-side PDF served via /api/sign/[token]/pdf (token-authenticated) not /api/documents/[id]/file (agent-authenticated) — signing page is public, agent route requires session ErrorPage function defined in page.tsx for inline use — no separate file needed, three small JSX blocks onFieldClick prop is a no-op stub in this plan — modal capture wired in Plan 04	Signing page validates token at server component level before rendering any client component — no canvas flash on expired/used/invalid tokens PDF coordinate conversion: pdfY (bottom-left origin) -> screenTop = renderedH - pdfY*scaleY - fieldH*scaleY Token-authenticated file routes use verifySigningToken() with no usedAt check — viewing is idempotent, submission check is separate	SIGN-02 SIGN-03 LEGAL-01	3min	2026-03-20

Phase 6 Plan 03: Signing Page Summary

Public /sign/[token] route with server-side token enforcement (expired/used/pending states), react-pdf full-scroll viewer, pulsing blue signature field overlays, and sticky progress bar

Performance

• Duration: 3 min
• Started: 2026-03-20T17:28:18Z
• Completed: 2026-03-20T17:30:54Z
• Tasks: 2
• Files modified: 6

Accomplishments

• Server component validates JWT + one-time-use before rendering any signing UI — no canvas flash on invalid tokens
• GET /api/sign/[token] returns expired/used/pending JSON with link_opened + document_viewed audit events logged
• Full-scroll react-pdf viewer with absolutely-positioned pulsing blue overlay divs on each signature field
• Sticky progress bar shows "X of Y signatures complete" with jump-to-next scroll and submit button
• GET /api/sign/[token]/pdf streams prepared PDF authenticated by signing token (no agent session required)
• npm run build passes cleanly with /sign/[token], /api/sign/[token], /api/sign/[token]/pdf all visible as dynamic routes

Task Commits

Each task was committed atomically:

1. Task 1: GET /api/sign/[token] route — token validation + audit logging - e1306da (feat)
2. Task 2: Signing page server component + client PDF viewer + progress bar - dcf503d (feat)

Plan metadata: (docs commit — see below)

Files Created/Modified

• teressa-copeland-homes/src/app/api/sign/[token]/route.ts - Public GET route: validates JWT, checks one-time-use, logs audit events, returns expired/used/pending JSON
• teressa-copeland-homes/src/app/api/sign/[token]/pdf/route.ts - Token-authenticated PDF streaming route; path traversal guard on stored relative path
• teressa-copeland-homes/src/app/sign/[token]/page.tsx - Server component: validates token + DB lookups before rendering any client UI; inline ErrorPage for three error states
• teressa-copeland-homes/src/app/sign/[token]/_components/SigningPageClient.tsx - Client PDF viewer: react-pdf Document+Page all pages, pulsing overlay divs, coordinate conversion, signaturesRef for Plan 04
• teressa-copeland-homes/src/app/sign/[token]/_components/SigningPageClientWrapper.tsx - Dynamic import wrapper (ssr:false) for react-pdf browser requirement
• teressa-copeland-homes/src/app/sign/[token]/_components/SigningProgressBar.tsx - Sticky progress bar with jump-to-next and submit button

Decisions Made

• SigningPageClientWrapper created with dynamic(..., { ssr: false }) — react-pdf requires browser APIs (HTMLCanvasElement, pdfjs worker). Direct import from server component would crash at SSR time.
• PDF file served via /api/sign/[token]/pdf rather than the existing /api/documents/[id]/file — the existing file route requires an authenticated agent session; the signing page is intentionally public and authenticates via the signing token.
• onFieldClick is a no-op stub in this plan. Plan 04 will wire up the signature modal and populate signaturesRef.
• ErrorPage inlined in page.tsx — three simple JSX blocks, not worth a separate file.

Deviations from Plan

Auto-fixed Issues

1. [Rule 2 - Missing Critical] Added SigningPageClientWrapper for SSR-safe dynamic import

• Found during: Task 2 (server component + PDF viewer)
• Issue: SigningPageClient uses pdfjs.GlobalWorkerOptions.workerSrc = new URL(import.meta.url) and react-pdf canvas APIs — these cannot run in Next.js SSR. Directly importing the client component from the server page.tsx would throw at build/render time.
• Fix: Created SigningPageClientWrapper.tsx as a 'use client' component that wraps SigningPageClient in next/dynamic(..., { ssr: false }). page.tsx imports the wrapper instead.
• Files modified: SigningPageClientWrapper.tsx (new), page.tsx (imports wrapper not client directly)
• Verification: npm run build passes, no SSR errors
• Committed in: dcf503d (Task 2 commit)

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Total deviations: 1 auto-fixed (Rule 2 — missing critical SSR guard) Impact on plan: Necessary for correctness — react-pdf cannot render server-side. The wrapper is a thin file with no behavior change. No scope creep.

Issues Encountered

None.

User Setup Required

None — no external service configuration required for this plan.

Next Phase Readiness

Phase 6 signing page is visually complete and compiles cleanly:

• /sign/[token] renders correct error states (expired/used/invalid) server-side before any JS runs
• Valid tokens render the branded header, full-scroll PDF viewer, pulsing field overlays, and sticky progress bar
• GET /api/sign/[token] logs audit events; GET /api/sign/[token]/pdf streams the prepared PDF
• Plan 04 can import SigningPageClient and wire up onFieldClick + the signature modal + submission POST
• Plan 04 can populate signaturesRef.current with captured signatures and call setSignedFields

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