feat: customizable permissions, per-item Ops ACLs, area-lead roles

Migration 023 (folded into schema.sql section 15). ADDITIVE and
backward compatible: with no permission/ACL rows the app behaves
exactly as before.

Schema:
- space_role_permissions (space_id, subject, permission); ops_acl
  (space_id, entity_type secret|kb|process|area_lead, entity_id,
  role). Full RLS, writes admin/board.
- user_effective_roles(uid,sid): built-in role + custom-role slugs +
  area_lead:<id> for areas the member leads. SECURITY DEFINER.
- user_has_permission(uid,sid,perm): admin implicit-all else a grant
  via an effective role. SECURITY DEFINER.
- secrets/knowledge_base SELECT rewritten as
  `exact existing rule OR ops_acl match` (only widens; zero change
  with no ACL rows). Seed + backfill default role permissions.

Area-lead roles reuse the existing area_leads table rather than
duplicating the concept: a row is a role, lead_id NULL = Vacant,
assigning sets lead_id, the member then holds area_lead:<id>.

App:
- lib/permissions-catalog.ts (codes + per-role defaults + guardrails),
  Zod schemas, lib/actions/permissions.ts (setRolePermissions,
  setOpsAcl, createAreaLeadRole, assign/unassign/delete).
- Customize gains Permissions (role x permission matrix, admin shown
  implicit-all/locked) and Area leads (create/Vacant/assign) panels,
  modular under customize/panels/. Reusable
  components/ops/ops-acl-editor.tsx wired into the Secrets list.

Audit-found latent fixes:
- revealSecret errors on encrypted-but-no-ciphertext corruption
  instead of silently returning the stale plaintext column.
- upsertAreaLead rejects null/empty area_code (NULLs are distinct in
  unique constraints; allowed duplicate rows).

types/database.ts: added the two new tables. 271/271 tests pass,
build clean. KB-modal ACL wiring + members-row shortcut deferred and
tracked in HANDOFF.

app/(app)/customize/page.tsx

@@ -28,6 +28,9 @@ export default async function CustomizePage() {
     { data: invites },
     { data: onboardingSteps },
     { data: areas },
+    { data: rolePerms },
+    { data: areaLeads },
+    { data: members },
   ] = await Promise.all([
     supabase.from('space_role_labels').select('role, display_name, description, color').eq('space_id', member.space_id),
     supabase.from('space_custom_roles').select('id, slug, name, description, color, sort_order').eq('space_id', member.space_id).order('sort_order'),
@@ -35,6 +38,9 @@ export default async function CustomizePage() {
     supabase.from('space_invites').select('id, code, label, expires_at, max_uses, uses_count, is_enabled, created_at').eq('space_id', member.space_id).order('created_at', { ascending: false }),
     supabase.from('space_onboarding_steps').select('id, step_key, step_type, title, body, config, is_enabled, is_required, is_system, sort_order').eq('space_id', member.space_id).order('sort_order'),
     supabase.from('space_areas').select('id, code, name, icon, sort_order, is_archived').eq('space_id', member.space_id).order('sort_order').order('name'),
+    supabase.from('space_role_permissions').select('subject, permission').eq('space_id', member.space_id),
+    supabase.from('area_leads').select('id, area_code, area_name, lead_id, lead_handle, status').eq('space_id', member.space_id).order('area_name'),
+    supabase.from('space_members').select('id, display_name, handle').eq('space_id', member.space_id).in('status', ['current', 'unverified', 'late']).order('display_name'),
   ])
 
   return (
@@ -46,6 +52,9 @@ export default async function CustomizePage() {
       invites={(invites ?? []) as Array<{ id: string; code: string; label: string | null; expires_at: string | null; max_uses: number | null; uses_count: number; is_enabled: boolean; created_at: string }>}
       onboardingSteps={(onboardingSteps ?? []) as Array<{ id: string; step_key: string; step_type: 'welcome' | 'code_of_conduct' | 'profile' | 'payment' | 'content'; title: string; body: string | null; config: Record<string, unknown>; is_enabled: boolean; is_required: boolean; is_system: boolean; sort_order: number }>}
       areas={(areas ?? []) as Array<{ id: string; code: string; name: string; icon: string | null; sort_order: number; is_archived: boolean }>}
+      rolePerms={(rolePerms ?? []) as Array<{ subject: string; permission: string }>}
+      areaLeads={(areaLeads ?? []) as Array<{ id: string; area_code: string | null; area_name: string; lead_id: string | null; lead_handle: string | null; status: string }>}
+      members={(members ?? []) as Array<{ id: string; display_name: string | null; handle: string | null }>}
     />
   )
 }