Release v1.6.0 - Audit System Cross-Tenant Viewing

Features:
- ✅ Cross-tenant audit log viewing for ADMIN/SUPPORT_MANAGER
- ✅ New 'all_tenants' parameter in audit endpoints
- ✅ Frontend toggle to view all clients' logs
- ✅ Multi-tenant stats support in /audit/stats
- ✅ Fixed timezone issue with date filters (UTC consistency)
- ✅ Fixed date_to filter overlap causing duplicate records

Changes:
- backend/app/api/v1/endpoints/audit.py:
  * Added tenant_id and all_tenants query parameters
  * Permission checks for cross-tenant viewing
  * Dynamic tenant filtering based on user role
  * Fixed date_to filter (removed +1 day overlap)
  * Updated all stats queries for multi-tenant support

- frontend-internal/src/routes/audit/+page.svelte:
  * Import auth store for role detection
  * Added 'Ver todos los clientes' toggle for admins
  * Pass all_tenants parameter to API calls
  * UI badge indicating multi-tenant mode

- Version bump: 1.5.1.2 → 1.6.0 across all packages

backend/pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "servicemanager-backend"
-version = "1.5.1.2"
+version = "1.6.0"
 description = "ServiceManagerWeb Backend - Mesa de Ayuda B2B"
 authors = [
     {name = "Aduanasoft", email = "dev@aduanasoft.com"}