chore: 批量代码优化与功能迭代更新

本次提交包含大量代码优化、功能新增与服务端配置更新：
1. 修复分析报告统计数据，调整CMake策略设置
2. 优化APP权限配置、编辑器与聊天界面组件
3. 更新依赖库版本与pubspec配置
4. 新增文件传输服务端、信令服务器相关配置与脚本
5. 完善用户注销功能与数据库迁移脚本
6. 优化多处动画效果、代码风格与日志输出
7. 新增多种调试与部署脚本，修复已知BUG

android/app/src/main/AndroidManifest.xml

@@ -24,6 +24,36 @@
     <!-- ============================================================ -->
     <uses-permission android:name="android.permission.VIBRATE" />
 
+    <!-- ============================================================ -->
+    <!-- NFC权限 — 文件传输NFC触碰配对                                 -->
+    <!-- ============================================================ -->
+    <uses-permission android:name="android.permission.NFC" />
+    <uses-feature
+        android:name="android.hardware.nfc"
+        android:required="false" />
+
+    <!-- ============================================================ -->
+    <!-- 蓝牙权限 — 文件传输BLE配对                                    -->
+    <!-- Android 12+: BLUETOOTH_SCAN/CONNECT/ADVERTISE                -->
+    <!-- Android 11及以下: BLUETOOTH/BLUETOOTH_ADMIN                  -->
+    <!-- ============================================================ -->
+    <uses-permission android:name="android.permission.BLUETOOTH"
+        android:maxSdkVersion="30" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"
+        android:maxSdkVersion="30" />
+    <uses-permission android:name="android.permission.BLUETOOTH_SCAN"
+        android:usesPermissionFlags="neverForLocation" />
+    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
+    <uses-feature
+        android:name="android.hardware.bluetooth_le"
+        android:required="false" />
+
+    <!-- ============================================================ -->
+    <!-- WiFi多播权限 — LocalSend设备发现                              -->
+    <!-- ============================================================ -->
+    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
+
     <application
         android:label="xianyan"
         android:name="${applicationName}"

android/app/src/main/kotlin/com/example/xianyan/MainActivity.kt

@@ -1,5 +1,14 @@
 package com.example.xianyan
 
+import android.os.Bundle
+import com.xianyan.ble.BleAdvertiserPlugin
 import io.flutter.embedding.android.FlutterActivity
 
-class MainActivity : FlutterActivity()
+class MainActivity : FlutterActivity() {
+    private val bleAdvertiser = BleAdvertiserPlugin()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        bleAdvertiser.setupChannel(flutterEngine!!, this)
+    }
+}

android/app/src/main/kotlin/com/xianyan/ble/BleAdvertiserPlugin.kt

@@ -0,0 +1,89 @@
+package com.xianyan.ble
+
+import android.bluetooth.BluetoothAdapter
+import android.bluetooth.BluetoothManager
+import android.bluetooth.le.AdvertiseCallback
+import android.bluetooth.le.AdvertiseData
+import android.bluetooth.le.AdvertiseSettings
+import android.content.Context
+import android.os.ParcelUuid
+import android.util.Log
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
+
+class BleAdvertiserPlugin : AdvertiseCallback() {
+    companion object {
+        private const val TAG = "BleAdvertiserPlugin"
+        private const val CHANNEL = "com.xianyan/ble"
+    }
+
+    private var isAdvertising = false
+    private var adapter: BluetoothAdapter? = null
+
+    fun setupChannel(flutterEngine: FlutterEngine, context: Context) {
+        val bm = context.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager
+        adapter = bm.adapter
+
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL)
+            .setMethodCallHandler { call, result ->
+                when (call.method) {
+                    "startAdvertising" -> {
+                        val serviceUuid = call.argument<String>("serviceUuid") ?: ""
+                        val payload = call.argument<String>("payload") ?: ""
+                        startAdvertising(serviceUuid, payload, result)
+                    }
+                    "stopAdvertising" -> {
+                        stopAdvertising(result)
+                    }
+                    else -> result.notImplemented()
+                }
+            }
+    }
+
+    private fun startAdvertising(
+        serviceUuid: String,
+        payload: String,
+        result: MethodChannel.Result,
+    ) {
+        val leAdvertiser = adapter?.bluetoothLeAdvertiser
+        if (leAdvertiser == null) {
+            result.error("UNAVAILABLE", "BLE advertiser not available", null)
+            return
+        }
+
+        val settings = AdvertiseSettings.Builder()
+            .setAdvertiseMode(AdvertiseSettings.ADVERTISE_MODE_LOW_LATENCY)
+            .setConnectable(false)
+            .setTimeout(0)
+            .build()
+
+        val serviceParcelUuid = ParcelUuid.fromString(serviceUuid)
+        val serviceData = payload.toByteArray(Charsets.UTF_8)
+
+        val data = AdvertiseData.Builder()
+            .addServiceUuid(serviceParcelUuid)
+            .addServiceData(serviceParcelUuid, serviceData)
+            .setIncludeDeviceName(false)
+            .build()
+
+        leAdvertiser.startAdvertising(settings, data, this)
+        isAdvertising = true
+        result.success(true)
+    }
+
+    private fun stopAdvertising(result: MethodChannel.Result) {
+        val leAdvertiser = adapter?.bluetoothLeAdvertiser
+        leAdvertiser?.stopAdvertising(this)
+        isAdvertising = false
+        result.success(true)
+    }
+
+    override fun onStartSuccess(settingsInEffect: AdvertiseSettings) {
+        Log.i(TAG, "BLE advertising started successfully")
+    }
+
+    override fun onStartFailure(errorCode: Int) {
+        isAdvertising = false
+        Log.e(TAG, "BLE advertising start failed: $errorCode")
+    }
+}