🐛 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/META-INF/nanohttpd/default-mimetypes.properties

@@ -0,0 +1,30 @@
+#default mime types for nanohttpd, use META-INF/mimetypes.properties for user defined mimetypes
+css=text/css
+htm=text/html
+html=text/html
+xml=text/xml
+java=text/x-java-source, text/java
+md=text/plain
+txt=text/plain
+asc=text/plain
+gif=image/gif
+jpg=image/jpeg
+jpeg=image/jpeg
+png=image/png
+svg=image/svg+xml
+mp3=audio/mpeg
+m3u=audio/mpeg-url
+mp4=video/mp4
+ogv=video/ogg
+flv=video/x-flv
+mov=video/quicktime
+swf=application/x-shockwave-flash
+js=application/javascript
+pdf=application/pdf
+doc=application/msword
+ogg=application/x-ogg
+zip=application/octet-stream
+exe=application/octet-stream
+class=application/octet-stream
+m3u8=application/vnd.apple.mpegurl
+ts=video/mp2t

apk_extracted/META-INF/nanohttpd/mimetypes.properties

@@ -0,0 +1 @@
+#mime types for nanohttpd, use a file like this for user defined mimetypes