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/useDeterminedCommitments.js

@@ -17,6 +17,7 @@
 import { computed, ref } from 'vue';
 import { supabase } from '@/lib/supabase/client';
 
+import { tenantDb } from '@/lib/supabase/tenantClient';
 export function useDeterminedCommitments(tenantIdRef) {
     const loading = ref(false);
     const error = ref('');
@@ -39,10 +40,9 @@ export function useDeterminedCommitments(tenantIdRef) {
             loading.value = true;
             error.value = '';
 
-            const { data, error: err } = await supabase
-                .from('determined_commitments')
-                .select('id,tenant_id,created_by,is_native,native_key,is_locked,active,name,description,bg_color,text_color,created_at,determined_commitment_fields(id,key,label,field_type,required,sort_order)')
-                .eq('tenant_id', tenantId.value) // ✅ SOMENTE tenant corrente
+            const { data, error: err } = await tenantDb().from('determined_commitments')
+                .select('id,created_by,is_native,native_key,is_locked,active,name,description,bg_color,text_color,created_at,determined_commitment_fields(id,key,label,field_type,required,sort_order)')
+                 // ✅ SOMENTE tenant corrente
                 .eq('active', true)
                 .order('is_native', { ascending: false })
                 .order('name', { ascending: true });