F3 schema-per-tenant: frontend usa tenantDb() pra tabelas tenant

- useTenantDb composable + lib/supabase/tenantClient (tenantDb/tenantSchemaName)
- tenantStore: getters activeTenantSlug/activeTenantSchema; my_tenants() RPC
  passa a devolver slug+nome (migration 07)
- codemod scripts/codemod-tenant-db.py: supabase.from('<84 tabelas + 6 views
  tenant>') -> tenantDb().from(...) em 139 arquivos (777 chamadas), remove
  .eq('tenant_id') das cadeias tenant (173)
- passada manual (4 agentes): remove tenant_id de payloads insert/upsert/update,
  selects, .or/.is de defaults; onConflict ajustado pros uniques sem tenant_id
  (singletons usam 'singleton'); realtime de tabelas tenant aponta pro schema
  do tenant ativo; repos dropam tenant_id defensivamente de payloads externos
- agendaSelects: tenant_id fora do AGENDA_EVENT_SELECT (quebraria PostgREST)
- zero embeds cross-schema (todos FK embeds sao tenant->tenant ou global->global)
- build de producao passa; 67 .js checados

Pendente (fora do escopo F3, sao cross-tenant/anon -> F4/F6):
- AgendadorPublicoPage (anon, resolve tenant por link_slug)
- Saas{Feriados,NotificationTemplates,DocumentTemplates,Whatsapp}Page
  (gerenciam defaults do sistema / views cross-tenant)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/App.vue

@@ -18,6 +18,7 @@
 import { onMounted, watch } from 'vue';
 import { useRoute, useRouter } from 'vue-router';
 import { supabase } from '@/lib/supabase/client';
+import { tenantDb } from '@/lib/supabase/tenantClient';
 import { useTenantStore } from '@/stores/tenantStore';
 import { fetchDocsForPath } from '@/composables/useAjuda';
 
@@ -51,8 +52,7 @@ async function checkSetupWizard() {
     // Se já confirmamos que este uid passou o setup, não verifica de novo
     if (_setupClearedUid === uid && _setupClearedIsClinic === isClinic) return;
 
-    const { data } = await supabase
-        .from('agenda_configuracoes')
+    const { data } = await tenantDb().from('agenda_configuracoes')
         .select('setup_concluido, setup_clinica_concluido, atendimento_mode')
         .eq('owner_id', uid)
         .maybeSingle();