* feat: add dev-daemon target for background development mode
Add a new make dev-daemon target that allows running DeerFlow services
in background mode without keeping the terminal connection.
Following the pattern of PR #1042, the implementation uses a dedicated
shell script (scripts/start-daemon.sh) for better maintainability.
- Create scripts/start-daemon.sh for daemon mode startup
- Add dev-daemon target to Makefile
- Each service writes logs to separate files (langgraph, gateway, frontend, nginx)
- Services can be stopped with make stop
- Use nohup for proper daemon process detachment
- Add cleanup on failure when services fail to start
- Use more specific pkill pattern to avoid killing unrelated nginx processes
* refactor: use wait-for-port.sh instead of hardcoded sleep in daemon script
* refactor: use specific nginx process pattern to avoid killing unrelated processes
* Revert "refactor: use specific nginx process pattern to avoid killing unrelated processes"
This reverts commit 4c369155bfc91ccce347876a8982f955fa039da8.
* refactor: use consistent nginx kill pattern across all scripts
* chore(daemon): add trap for cleanup on interrupt signals
* fix(daemon): pass repo root as positional argument to nginx command
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Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
