🐛 Fix source switching crash & enhance stability (v3.0.4)

### 🐛 Bug Fixes
- Fix random crashes when switching video sources in settings management
- Enhanced VodConfig.setHome() null pointer exception handling
- Improved Fragment lifecycle checks to prevent crashes
- Optimized HistoryDialog source switching safety
- Enhanced thread safety for concurrent loading

### ⚡ Performance Improvements
- Added automatic cache cleaning functionality
- Improved memory usage optimization
- Enhanced network request stability

### 🆕 New Features
- Added comprehensive error handling mechanisms
- Enhanced crash protection functionality
- Improved Fragment state validation

### 📱 Build Improvements
- Updated README with professional documentation
- Enhanced build configuration for ARM64-V8A and ARM V7A
- Improved APK packaging and signing process

apk/release/mobile-arm64_v8a.json

@@ -1,5 +0,0 @@
-{
-  "name": "v3.0.1",
-  "code": 301,
-  "desc": "1. 优化项目结构，重新组织各功能模块\n2. 更新移动端界面，优化用户体验\n3. 强制使用深色模式，提供更好的观看体验"
-} 

apk/release/mobile-armeabi_v7a.json

@@ -1,5 +0,0 @@
-{
-  "name": "v3.0.1",
-  "code": 301,
-  "desc": "1. 优化项目结构，重新组织各功能模块\n2. 更新移动端界面，优化用户体验\n3. 强制使用深色模式，提供更好的观看体验"
-}