feat(auth): phase 3 — replace Supabase GoTrue with bcryptjs+jose

Custom auth stack: bcryptjs password hashing (cost 10, GoTrue-compatible),
jose JWT session cookies (edge-safe, 8hr TTL), new API routes for
login/logout/reset/change-password, middleware rewritten to JWT-only
verification with no DB access. All 38 protected pages and API routes
migrated from supabase.auth.getUser() to getSession(). Supabase .from()
queries retained for Phase 4. lib/db/index.ts refactored to lazy Proxy
singleton to avoid module-level throw during Next.js build.

tsc: clean, build: clean, tests: 4/4 passed

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/(protected)/capa-owner/page.tsx

@@ -3,6 +3,7 @@ export const dynamic = 'force-dynamic'
 import Link from 'next/link'
 import { createClient } from '@/lib/supabase/server'
 import { redirect } from 'next/navigation'
+import { getSession } from '@/lib/auth/get-session'
 import { StatCard } from '@/components/dashboard/stat-card'
 import { CapaOwnerActions } from '@/components/capa/capa-owner-actions'
 import { CapaOwnerNotesForm } from '@/components/capa/capa-owner-notes-form'
@@ -28,17 +29,16 @@ const STATUS_COLORS: Record<string, string> = {
 }
 
 export default async function CapaOwnerPage() {
-  const supabase = await createClient()
-  const { data: { user } } = await supabase.auth.getUser()
-  if (!user) redirect('/login')
+  const session = await getSession()
+  if (!session) redirect('/login')
+  if (!['capa_owner', 'admin', 'hse', 'supervisor'].includes(session.role)) redirect('/')
 
-  const { data: profile } = await supabase.from('users').select('name, role').eq('id', user.id).single()
-  if (!profile || !['capa_owner', 'admin', 'hse', 'supervisor'].includes(profile.role)) redirect('/')
+  const supabase = await createClient()
 
   const { data: capas } = await supabase
     .from('capa_actions')
     .select('id, description, due_date, priority, status, incident_id, owner_notes, incidents (reference_no)')
-    .eq('owner_user_id', user.id)
+    .eq('owner_user_id', session.sub)
     .order('due_date', { ascending: true, nullsFirst: false })
 
   const rows = capas ?? []