feat: DTC-коды: справочник, эндпоинты /dtc/decode, /dtc/upload

api/db.py

@@ -231,6 +231,30 @@ class Database:
         ).fetchall()
         return [dict(r) for r in rows]
 
+    def save_dtc_scan(self, client_info: dict, dtc_codes: list[str]):
+        """Сохраняет быстрый скан кодов ошибок."""
+        self.conn.execute("""
+            INSERT INTO sessions (
+                client_ip, real_ip, user_agent,
+                phone_model, phone_maker, android_version, android_sdk,
+                app_version, android_id, device_uuid,
+                elm_mac, elm_bt_name,
+                dtc_count, response_count,
+                script_mode, transport,
+                raw_responses
+            ) VALUES (?,?,?, ?,?,?,?, ?,?,?, ?,?, ?,?, ?,?,?)
+        """, (
+            client_info.get("client_ip"), client_info.get("real_ip"), client_info.get("user_agent"),
+            client_info.get("phone_model"), client_info.get("phone_maker"), client_info.get("android_version"),
+            client_info.get("android_sdk"), client_info.get("app_version"), client_info.get("android_id"),
+            client_info.get("device_uuid"),
+            client_info.get("elm_mac"), client_info.get("elm_bt_name"),
+            len(dtc_codes), 0,
+            "dtc_scan", client_info.get("transport", "bt"),
+            json.dumps([{"decoded": f"DTC stored: {c}"} for c in dtc_codes], ensure_ascii=False)
+        ))
+        self.conn.commit()
+
     # ── cars ──────────────────────────────────────────────
 
     def get_or_create_car(self, vin: str) -> int: