feat: local releases for offline/CORS-free flasher

flasher/releases.json

@@ -0,0 +1,25 @@
+[
+  {
+    "id": 1,
+    "tag_name": "beacon-v1.0.0",
+    "name": "Beacon Sensor v1.0.0",
+    "body": "Прошивка Beacon Sensor для Heltec T114\n\n- Автоматическая отправка flood-объявления каждые 15 минут\n- ADV_TYPE_CHAT с ретрансляцией\n- Поддержка BMP280 по I2C (Wire1, SDA=7, SCL=8)\n- BLE (пин 123456)\n- Радиопараметры: 868.731 MHz, SF7, BW62.5, CR7\n\n## Сборка\npio run -e Heltec_t114_without_display_beacon_sensor_ble -t create_uf2\n\n## Прошивка (UF2)\n1. Зажми BOOT на T114, подключи USB\n2. Перетащи firmware.uf2 на диск T114",
+    "published_at": "2026-06-05T06:36:40Z",
+    "assets": [
+      {
+        "id": 1,
+        "name": "Heltec_T114_Beacon_BLE.uf2",
+        "size": 887296,
+        "download_count": 12,
+        "browser_download_url": "./releases/Heltec_T114_Beacon_BLE.uf2"
+      },
+      {
+        "id": 2,
+        "name": "Heltec_T114_Beacon_BLE.dfu.zip",
+        "size": 305769,
+        "download_count": 3,
+        "browser_download_url": "./releases/Heltec_T114_Beacon_BLE.dfu.zip"
+      }
+    ]
+  }
+]