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/features/agenda/composables/useAgendaEventPickerBilling.js

@@ -38,6 +38,7 @@
 */
 import { ref, watch, nextTick } from 'vue';
 import { supabase } from '@/lib/supabase/client';
+import { tenantDb } from '@/lib/supabase/tenantClient';
 import { calcFinalPrice } from './agendaEventHelpers';
 
 export function useAgendaEventPickerBilling({
@@ -254,13 +255,11 @@ export function useAgendaEventPickerBilling({
             pacientesError.value = '';
             pacientesLoading.value = true;
 
-            let q = supabase
-                .from('patients')
-                .select('id,nome_completo,email_principal,telefone,status,avatar_url,tenant_id,responsible_member_id,created_at')
+            let q = tenantDb().from('patients')
+                .select('id,nome_completo,email_principal,telefone,status,avatar_url,responsible_member_id,created_at')
                 .order('created_at', { ascending: false })
                 .limit(500);
 
-            if (props.tenantId) q = q.eq('tenant_id', props.tenantId);
             if (props.restrictPatientsToOwner && props.patientScopeOwnerId) {
                 q = q.eq('responsible_member_id', props.patientScopeOwnerId);
             }