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/report/page.tsx

@@ -2,6 +2,7 @@ export const dynamic = 'force-dynamic'
 
 import { redirect } from 'next/navigation'
 import { createClient } from '@/lib/supabase/server'
+import { getSession } from '@/lib/auth/get-session'
 import { ReportForm } from '@/components/incidents/report-form'
 import { LanguageSwitcher } from '@/components/language-switcher'
 import { OfflineSync } from '@/components/incidents/offline-sync'
@@ -12,10 +13,10 @@ interface Props {
 
 export default async function ReportPage({ searchParams }: Props) {
   const { zone, truck_id } = await searchParams
-  const supabase = await createClient()
-  const { data, error: authError } = await supabase.auth.getUser()
+  const session = await getSession()
+  if (!session) redirect(`/login?redirect=/report${zone ? `?zone=${zone}` : ''}`)
 
-  if (authError || !data?.user) redirect(`/login?redirect=/report${zone ? `?zone=${zone}` : ''}`)
+  const supabase = await createClient()
 
   let zoneName: string | null = null
   let siteName: string | null = null