feat(patients): phase D — call-center tab (patient call log)

Add a record-scoped PatientCall entity (subject, summary, outcome
success/missed, called_at, personnel) with its repository and three
owner-gated endpoints on PatientController:

  GET    /patient/{uuid}/calls   — call log, newest first, optional ?outcome
  POST   /patient/{uuid}/call    — log a call (subject required)
  DELETE /patient/call/{uuid}    — delete an entry

Wire the previously-placeholder "کال سنتر" tab as a CallCenterTab: a register
form (date/time/subject/summary + success/missed toggle, personnel taken from
the logged-in user) beside a filterable call history (all / success / missed).
With this every patient-detail tab is now backed by a real endpoint, so the
generic Placeholder is no longer reachable. PatientCallTest covers create/list/
delete, the outcome filter, the invalid-outcome fallback, and ownership scoping.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/api/patient.md

@@ -586,3 +586,30 @@ Response: `{ success, data: [{ uuid, amount_rials, type, description, balance_af
 | HTTP | Code | Description |
 |------|------|-------------|
 | 404 | `ERR_PATIENT_001` | رکورد یافت نشد یا متعلق به مالک دیگر |
+
+---
+
+## کال سنتر بیمار (Call Center)
+
+لاگ تماس‌های تلفنی با بیمار (تب «کال سنتر»). scope به رکورد و مالک.
+
+**Permission:** `IS_AUTHENTICATED_FULLY` (مالک رکورد)
+
+### GET `/api/v1/patient/{uuid}/calls`
+لیست (جدیدترین بر اساس `called_at`). Query: `outcome` (اختیاری: `success|missed`).
+Response: `{ success, data: [{ uuid, subject, summary, outcome, called_at, personnel, created_at }] }`
+
+### POST `/api/v1/patient/{uuid}/call`
+```json
+{ "subject": "پیگیری نوبت", "summary": "اختیاری", "outcome": "success|missed (پیش‌فرض success)", "called_at": 1731000000, "personnel": "نام ثبت‌کننده (اختیاری)" }
+```
+`subject` الزامی؛ `outcome` نامعتبر → `success`؛ `called_at` غایب → اکنون. Response `201`.
+
+### DELETE `/api/v1/patient/call/{uuid}`
+حذف. فقط مالک؛ در غیر این صورت `404`.
+
+### Errors
+| HTTP | Code | Description |
+|------|------|-------------|
+| 422 | `ERR_VALIDATION_001` | موضوع خالی (`field: subject`) |
+| 404 | `ERR_PATIENT_001` | رکورد/تماس یافت نشد یا مالک دیگر |