Django Multi-Tenant Isolation

Enforces transparent multi-tenant isolation in Django projects using middleware. Auto-activates on: tenant, multi-tenant, tenant_id, company, isolation, middleware, cross-tenant. Prevents manual tenant_id filtering (CRITICAL security violation), bypassing middleware, cross-tenant data leaks. Ensures middleware handles ALL isolation, queries are tenant-agnostic, tests validate isolation. Validates NO tenant_id in QuerySet filters, MultitenantMiddleware configured, all models inherit TenantAwareModel. Targets: 100% transparent isolation, 0 manual tenant_id filters, 0 cross-tenant vulnerabilities.