Add SRT/FLV/RTMP support and update documentation

Introduced Python scripts for SRT subtitle checking and fixing, and added comprehensive documentation covering advanced features such as protocol detection, subtitle/audio/quality management, keyboard shortcuts, and touch gestures. Updated local settings to allow new build and Python commands, added TypeScript definitions for FLV, and implemented RTMP/FLV protocol support in the player. Removed CHANGELOG.md and made various improvements to styles and example app.

.claude/settings.local.json

@@ -3,7 +3,11 @@
     "allow": [
       "Bash(find:*)",
       "Bash(cat:*)",
-      "Bash(npm run build:*)"
+      "Bash(npm run build:*)",
+      "Bash(python check_srt.py:*)",
+      "Bash(python fix_srt.py:*)",
+      "Bash(python:*)",
+      "Bash(pnpm run build:lib:*)"
     ],
     "deny": [],
     "ask": []