feat(pitch-deck): add passwordless investor auth, audit logs, snapshots & PWA

Implement a complete investor access system for the pitch deck:

- Passwordless magic link auth (jose JWT + nodemailer SMTP)
- Per-investor audit logging (slide views, assumption changes, chat)
- Financial model snapshot persistence (auto-save/restore per investor)
- PWA support (manifest, service worker, offline caching, icons)
- Security safeguards (watermark overlay, rate limiting, anti-scraping
  headers, content protection, single-session enforcement)
- Admin API for invite/revoke/audit-log management
- Integrated into docker-compose.coolify.yml for production deployment

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

pitch-deck/app/api/auth/verify/route.ts

@@ -0,0 +1,85 @@
+import { NextRequest, NextResponse } from 'next/server'
+import pool from '@/lib/db'
+import { createSession, setSessionCookie, getClientIp, logAudit, hashToken } from '@/lib/auth'
+import { checkRateLimit, RATE_LIMITS } from '@/lib/rate-limit'
+
+export async function POST(request: NextRequest) {
+  const ip = getClientIp(request) || 'unknown'
+
+  // Rate limit by IP
+  const rl = checkRateLimit(`auth-verify:${ip}`, RATE_LIMITS.authVerify)
+  if (!rl.allowed) {
+    return NextResponse.json({ error: 'Too many attempts. Try again later.' }, { status: 429 })
+  }
+
+  const body = await request.json()
+  const { token } = body
+
+  if (!token || typeof token !== 'string') {
+    return NextResponse.json({ error: 'Token required' }, { status: 400 })
+  }
+
+  // Find the magic link
+  const { rows } = await pool.query(
+    `SELECT ml.id, ml.investor_id, ml.expires_at, ml.used_at, i.email, i.status as investor_status
+     FROM pitch_magic_links ml
+     JOIN pitch_investors i ON i.id = ml.investor_id
+     WHERE ml.token = $1`,
+    [token]
+  )
+
+  if (rows.length === 0) {
+    await logAudit(null, 'login_failed', { reason: 'invalid_token' }, request)
+    return NextResponse.json({ error: 'Invalid link' }, { status: 401 })
+  }
+
+  const link = rows[0]
+
+  if (link.used_at) {
+    await logAudit(link.investor_id, 'login_failed', { reason: 'token_already_used' }, request)
+    return NextResponse.json({ error: 'This link has already been used. Please request a new one.' }, { status: 401 })
+  }
+
+  if (new Date(link.expires_at) < new Date()) {
+    await logAudit(link.investor_id, 'login_failed', { reason: 'token_expired' }, request)
+    return NextResponse.json({ error: 'This link has expired. Please request a new one.' }, { status: 401 })
+  }
+
+  if (link.investor_status === 'revoked') {
+    await logAudit(link.investor_id, 'login_failed', { reason: 'investor_revoked' }, request)
+    return NextResponse.json({ error: 'Access has been revoked.' }, { status: 403 })
+  }
+
+  const ua = request.headers.get('user-agent')
+
+  // Mark token as used
+  await pool.query(
+    `UPDATE pitch_magic_links SET used_at = NOW(), ip_address = $1, user_agent = $2 WHERE id = $3`,
+    [ip, ua, link.id]
+  )
+
+  // Activate investor if first login
+  await pool.query(
+    `UPDATE pitch_investors SET status = 'active', last_login_at = NOW(), login_count = login_count + 1, updated_at = NOW()
+     WHERE id = $1`,
+    [link.investor_id]
+  )
+
+  // Create session and set cookie
+  const { sessionId, jwt } = await createSession(link.investor_id, ip, ua)
+  await setSessionCookie(jwt)
+
+  // Check for new IP
+  const { rows: prevSessions } = await pool.query(
+    `SELECT DISTINCT ip_address FROM pitch_sessions WHERE investor_id = $1 AND id != $2 AND ip_address IS NOT NULL`,
+    [link.investor_id, sessionId]
+  )
+  const knownIps = prevSessions.map((r: { ip_address: string }) => r.ip_address)
+  if (knownIps.length > 0 && !knownIps.includes(ip)) {
+    await logAudit(link.investor_id, 'new_ip_detected', { ip, known_ips: knownIps }, request, undefined, sessionId)
+  }
+
+  await logAudit(link.investor_id, 'login_success', { email: link.email }, request, undefined, sessionId)
+
+  return NextResponse.json({ success: true, redirect: '/' })
+}