🐛 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_extracted/assets/css/ui.css

@@ -0,0 +1,26 @@
+body,
+html {
+  height: 100%;
+  -webkit-tap-highlight-color: transparent;
+}
+
+body {
+  font-family: system-ui, -apple-system, Helvetica Neue, sans-serif;
+}
+
+.page,
+body {
+  background-color: var(--weui-BG-0);
+}
+
+.page {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  overflow-y: auto;
+  -webkit-overflow-scrolling: touch;
+  box-sizing: border-box;
+  z-index: 1;
+}