fix(video-format-detector): temporarily redirect .ts files to local player

- Disabled .ts from TS_STREAM_FORMATS to prevent HLS resegmentation issues
- Added explicit handling to send .ts files to external local video players
- Enhanced user messaging explaining the temporary workaround
- Ensured seamless playback via existing external streaming API with range support
- Minimized code changes for easy reversal once HLS streaming is fixed
- Documented the temporary fix, user experience, and reverting steps

TEMP_TS_FIX.md

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+# Temporary .ts File Fix
+
+## Overview
+This document describes a temporary fix implemented to handle problematic .ts file resegmentation by redirecting .ts files to external local video players instead of attempting HLS streaming.
+
+## Problem
+The .ts resegmentation implementation for HLS streaming was causing playback issues. Instead of complex troubleshooting, a simple temporary solution was needed to make .ts files playable immediately.
+
+## Solution
+Modified `src/lib/video-format-detector.ts` to treat .ts files like other non-mp4 files that require external local video players.
+
+## Changes Made
+
+### 1. Updated TS_STREAM_FORMATS Array
+```typescript
+// BEFORE
+const TS_STREAM_FORMATS = [
+  'ts',   // MPEG Transport Stream - optimal for HLS streaming
+  'm2ts', // Blu-ray Transport Stream  
+  'mts'   // AVCHD Transport Stream
+];
+
+// AFTER (temporary)
+const TS_STREAM_FORMATS = [
+  // 'ts',   // TEMPORARILY DISABLED - send to local player instead
+  'm2ts', // Blu-ray Transport Stream
+  'mts'   // AVCHD Transport Stream
+];
+```
+
+### 2. Added Explicit .ts File Handling
+```typescript
+// TEMPORARY FIX: Send .ts files to local player due to resegmentation issues
+if (extension === 'ts') {
+  console.log('[FormatDetector] .ts file detected, sending to local player (temporary fix)');
+  return createLocalPlayerFormat(video, extension);
+}
+```
+
+### 3. Enhanced User Messaging
+Added specific warning message for .ts files:
+```typescript
+const warningMessage = isTsFile 
+  ? 'MPEG Transport Stream (.ts) files require a local video player for optimal playback. This is a temporary solution while we fix the streaming implementation.'
+  : 'This format requires a local video player';
+```
+
+## User Experience
+- When users click on a .ts file, they will see the Local Player Launcher
+- Clear messaging explains this is a temporary solution
+- Users can copy the stream URL to VLC, IINA, PotPlayer, or other local players
+- Files play perfectly through the external streaming API (`/api/external-stream/[id]`)
+
+## Technical Benefits
+- ✅ Immediate fix - .ts files are now playable
+- ✅ Uses existing, well-tested external streaming API
+- ✅ Proper HTTP range support for seeking
+- ✅ No transcoding required
+- ✅ Minimal code changes
+- ✅ Easy to revert when HLS implementation is fixed
+
+## Reverting This Fix
+When the .ts resegmentation implementation is fixed:
+
+1. Remove the explicit .ts handling in `detectVideoFormat()`
+2. Add 'ts' back to the `TS_STREAM_FORMATS` array
+3. Remove the temporary comments and warning messages
+4. Test HLS streaming with .ts files
+
+## Files Modified
+- `/src/lib/video-format-detector.ts` - Main format detection logic
+
+## API Endpoint Used
+- `/api/external-stream/[id]` - Optimized for external players with range request support
+
+This temporary fix provides immediate .ts file playability while maintaining the overall architecture for a permanent HLS-based solution later.