Add AST cache for AdminLogsTest.php with extracted nodes and edges

docs/api/admin.md

@@ -1216,6 +1216,25 @@ Notes:
 - `context` is a JSON string (or `null`); a `Throwable` in the context is stored as a compact `Class: message @ file:line` string, never the raw object.
 - `created_at` is a Unix timestamp (integer).
 
+### GET `/api/v1/admin/logs/export`
+
+Export **all** matching logs as a CSV file (no pagination). Respects the same `level`, `search`, `from`, `to` filters as the list endpoint. Ordered newest first (`id DESC`).
+
+**Permission:** `ROLE_ADMIN`
+
+### Query Parameters
+| Param | Type | Required | Description |
+|-------|------|----------|-------------|
+| `level` | string | ❌ | Exact PSR level: `warning`, `error`, `critical`, `alert`, `emergency` |
+| `search` | string | ❌ | Substring match on the message |
+| `from` | integer | ❌ | Unix timestamp lower bound (`created_at >=`) |
+| `to` | integer | ❌ | Unix timestamp upper bound (`created_at <=`) |
+
+#### Response `200`
+- `Content-Type: text/csv; charset=UTF-8`
+- `Content-Disposition: attachment; filename="logs-YYYYMMDD-HHMMSS.csv"`
+- Streamed CSV with a UTF-8 BOM (Excel-friendly for Persian). Columns: `id, level, message, context, channel, path, created_at`. `created_at` is formatted as `Y-m-d H:i:s`.
+
 ### DELETE `/api/v1/admin/logs`
 
 Delete **all** persisted logs (truncate the `app_log` table). Irreversible.