refactor(tenant): make EntityContextResolver the single context resolver

Phase 1 of the tenant-marking series. The "which environment is this user
working in?" decision was reimplemented in six places, each reading
UserActiveContext.db_uuid and then guessing whether the uuid belongs to a
clinic or a doctor. Every copy was a place the roles could silently diverge.

EntityContextResolver already encoded the right precedence (explicit
clinic_uuid > stored active context > role) but only five files used it, and
it did not recognise secretaries at all: canActInClinic accepted admins,
clinic owners and member doctors, so a secretary's active clinic context
always collapsed to unknown. That gap is why SecretaryAccessChecker carried
its own copy of the logic.

- canActInClinic now also accepts an active DoctorSecretary relation, and a
  matching canActForDoctor covers the personal-practice branch.
- AppointmentAccessChecker, ClinicDoctorAccessChecker, SecretaryAccessChecker,
  PatientRecordScopeResolver, MyAppointmentsController and the secretary
  dashboard all resolve through it now.
- PatientRecordScopeResolver keeps only its real responsibility: which
  doctors' patients are visible inside the resolved environment.
- The resolver answers "where"; ClinicDoctorPermissionChecker and
  SecretaryPermissionChecker still answer "what may you do".

Left deliberately untouched, with the reason recorded at each site:
SubscriptionController, InventoryController and TenantTagController check
ROLE_DOCTOR unconditionally and ignore the active context, so a member doctor
sees personal inventory/tags/subscription even inside a clinic. Switching them
changes what users see, which is a product decision, not a refactor.
AuthController keeps its repository because it writes the active context.

tests/ApiTestCase now seeds the "free" subscription plan. db_test had no such
row, so getEffectivePlan returned null, every hasFeature() was false and 83
tests across Patient, ClinicService, Insurance and Appointment failed with 403.

No schema, route, request, response or error code changed.

Tests: 813 passing (was 730 passing / 83 failing). PHPStan clean on all
changed files.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/Subscription/Controller/SubscriptionController.php

@@ -257,6 +257,13 @@ class SubscriptionController extends BaseController
 
     // ── Helpers ─────────────────────────────────────────────────────────────
 
+    /**
+     * عمداً از EntityContextResolver استفاده نمی‌کند: اشتراک به مالکِ حقوقی تعلق
+     * دارد، نه به محیطِ کاری لحظه‌ای — پزشکِ عضو در محیط کلینیک همچنان اشتراک
+     * خودش را می‌بیند، نه اشتراک کلینیک. انتقال به رزولور این را عوض می‌کند.
+     *
+     * @return array{0: string, 1: int|null} [entityType, entityId]
+     */
     private function resolveEntity(User $user): array
     {
         if ($user->hasRole('ROLE_DOCTOR')) {