feat: Add raw output logging and endpoint for debugging

- Introduced a new environment variable `AUTOMAKER_DEBUG_RAW_OUTPUT` to enable raw output logging for agent streams.
- Added a new endpoint `/raw-output` to retrieve raw JSONL output for debugging purposes.
- Implemented functionality in `AutoModeService` to log raw output events and save them to `raw-output.jsonl`.
- Enhanced `FeatureLoader` to provide access to raw output files.
- Updated UI components to clean fragmented streaming text for better log parsing.

apps/server/.env.example

@@ -48,3 +48,15 @@ TERMINAL_ENABLED=true
 TERMINAL_PASSWORD=
 
 ENABLE_REQUEST_LOGGING=false
+
+# ============================================
+# OPTIONAL - Debugging
+# ============================================
+
+# Enable raw output logging for agent streams (default: false)
+# When enabled, saves unprocessed stream events to raw-output.jsonl
+# in each feature's directory (.automaker/features/{id}/raw-output.jsonl)
+# Useful for debugging provider streaming issues, improving log parsing,
+# or analyzing how different providers (Claude, Cursor) stream responses
+# Note: This adds disk I/O overhead, only enable when debugging
+AUTOMAKER_DEBUG_RAW_OUTPUT=false