build: vendor pinned flutter_vless Android runtime (#10)

Replace build-time pub-cache mutation with a repository-owned pinned runtime so reviewed native source is the source compiled into the app.

android/app/build.gradle.kts

@@ -1,5 +1,4 @@
 import java.util.Properties
-import java.io.File
 import java.io.FileInputStream
 
 plugins {
@@ -7,128 +6,6 @@ plugins {
     id("dev.flutter.flutter-gradle-plugin")
 }
 
-val projectRootDir = rootProject.projectDir.parentFile
-val localPropertiesFile = rootProject.file("local.properties")
-val localProperties = Properties().apply {
-    if (localPropertiesFile.exists()) {
-        localPropertiesFile.inputStream().use { load(it) }
-    }
-}
-val flutterSdkPath = localProperties.getProperty("flutter.sdk")
-    ?: throw GradleException("flutter.sdk not set in android/local.properties")
-val dartExecutable = File(
-    flutterSdkPath,
-    if (System.getProperty("os.name").lowercase().contains("windows")) {
-        "bin/cache/dart-sdk/bin/dart.exe"
-    } else {
-        "bin/cache/dart-sdk/bin/dart"
-    },
-)
-val flutterVlessRecoveryPatchScript = File(
-    projectRootDir,
-    "tool/patch_flutter_vless_runtime_recovery.dart",
-)
-val flutterVlessSecureSocksPatchScript = File(
-    projectRootDir,
-    "tool/patch_flutter_vless_secure_socks_v2.dart",
-)
-val flutterVlessSecureSocksScopeFixScript = File(
-    projectRootDir,
-    "tool/patch_flutter_vless_secure_socks_scope_fix.dart",
-)
-
-val patchFlutterVlessRuntimeRecovery = tasks.register<Exec>("patchFlutterVlessRuntimeRecovery") {
-    group = "build setup"
-    description = "Recover stale Xray core and tun2socks socket before restart"
-    workingDir(projectRootDir)
-
-    doFirst {
-        if (!dartExecutable.isFile) {
-            throw GradleException("Flutter Dart executable not found: ${dartExecutable.absolutePath}")
-        }
-        if (!flutterVlessRecoveryPatchScript.isFile) {
-            throw GradleException("flutter_vless recovery patch script missing: ${flutterVlessRecoveryPatchScript.absolutePath}")
-        }
-        if (!File(projectRootDir, ".dart_tool/package_config.json").isFile) {
-            throw GradleException("Flutter package metadata missing. Run `flutter pub get` before Android compilation.")
-        }
-    }
-
-    commandLine(
-        dartExecutable.absolutePath,
-        "run",
-        flutterVlessRecoveryPatchScript.absolutePath,
-    )
-}
-
-val patchFlutterVlessSecureSocks = tasks.register<Exec>("patchFlutterVlessSecureSocks") {
-    group = "build setup"
-    description = "Add authenticated ephemeral SOCKS5 and fail-closed process recovery to pinned flutter_vless_android 1.1.5"
-    workingDir(projectRootDir)
-    dependsOn(patchFlutterVlessRuntimeRecovery)
-
-    doFirst {
-        if (!dartExecutable.isFile) {
-            throw GradleException("Flutter Dart executable not found: ${dartExecutable.absolutePath}")
-        }
-        if (!flutterVlessSecureSocksPatchScript.isFile) {
-            throw GradleException("secure SOCKS patch script missing: ${flutterVlessSecureSocksPatchScript.absolutePath}")
-        }
-        if (!File(projectRootDir, ".dart_tool/package_config.json").isFile) {
-            throw GradleException("Flutter package metadata missing. Run `flutter pub get` before Android compilation.")
-        }
-    }
-
-    commandLine(
-        dartExecutable.absolutePath,
-        "run",
-        flutterVlessSecureSocksPatchScript.absolutePath,
-    )
-}
-
-val patchFlutterVlessSecureSocksScopeFix = tasks.register<Exec>("patchFlutterVlessSecureSocksScopeFix") {
-    group = "build setup"
-    description = "Repair the secure Xray process monitor capture without changing stock 1.1.5 runtime sequencing"
-    workingDir(projectRootDir)
-    dependsOn(patchFlutterVlessSecureSocks)
-
-    doFirst {
-        if (!dartExecutable.isFile) {
-            throw GradleException("Flutter Dart executable not found: ${dartExecutable.absolutePath}")
-        }
-        if (!flutterVlessSecureSocksScopeFixScript.isFile) {
-            throw GradleException("secure SOCKS scope fix script missing: ${flutterVlessSecureSocksScopeFixScript.absolutePath}")
-        }
-        if (!File(projectRootDir, ".dart_tool/package_config.json").isFile) {
-            throw GradleException("Flutter package metadata missing. Run `flutter pub get` before Android compilation.")
-        }
-    }
-
-    commandLine(
-        dartExecutable.absolutePath,
-        "run",
-        flutterVlessSecureSocksScopeFixScript.absolutePath,
-    )
-}
-
-// App compilation and the transitive Android plugin compilation must both wait
-// for the pinned runtime patches. Plain `flutter build apk` must behave like CI
-// instead of relying on a hidden manual pre-build step.
-tasks.configureEach {
-    if (name == "preBuild") {
-        dependsOn(patchFlutterVlessSecureSocksScopeFix)
-    }
-}
-
-gradle.projectsEvaluated {
-    rootProject.findProject(":flutter_vless_android")
-        ?.tasks
-        ?.matching { it.name == "preBuild" }
-        ?.configureEach {
-            dependsOn(patchFlutterVlessSecureSocksScopeFix)
-        }
-}
-
 android {
     namespace = "com.paladinvpn.app"
     compileSdk = flutter.compileSdkVersion