feat(config): impl daemon group

[gaojunran]

No description provided.

[greptile-apps]

Greptile Summary

This PR implements a --group flag for the start, stop, and restart commands, allowing users to operate on named sets of daemons defined in pitchfork.toml under a [groups.<name>] section. It also refactors the ID-resolution path into a single resolve_ids_and_group helper that reads the merged config once and deduplicates across positional IDs and group members.

• Adds GroupEntryRaw / GroupEntry types, group parsing during config load, serialization round-trip, and all_merged merge support in src/pitchfork_toml.rs.
• Introduces --group <GROUP> to start, stop, and restart, with appropriate clap conflicts_with declarations (local/global/all), updated ensure! guards, and consistent empty-result early-exits.
• Updates CLI reference docs (commands.json, *.md) and the usage KDL to reflect the new flag.

Confidence Score: 5/5

The change is well-scoped and additive; no existing resolution paths were altered, and the new group logic is exercised only when --group is explicitly passed.

The dedup, namespace resolution, missing-daemon validation, and serialization round-trip all follow existing patterns in the codebase. The three CLI commands are symmetric and handle the empty-result case consistently. No data loss or correctness issues were identified.

No files require special attention.

Important Files Changed

Filename	Overview
src/pitchfork_toml.rs	Adds GroupEntryRaw/GroupEntry types, group parsing/serialization during config load, merge support, and the new resolve_ids_and_group helper that consolidates dedup logic into a single all_merged() call.
src/cli/start.rs	Adds --group flag, updates ensure! guard, replaces resolve_ids call with resolve_ids_and_group, and adds a new ids.is_empty() early-exit with a warning.
src/cli/stop.rs	Adds --group flag and updates ensure! guard and resolve call, consistent with start.rs; the empty-ids guard was already present.
src/cli/restart.rs	Adds --group flag and updates ensure! guard and resolve call, consistent with stop.rs; the empty-ids guard was already present.
pitchfork.usage.kdl	Adds --group flag declarations and updated long_help strings for start, stop, and restart commands.
docs/cli/commands.json	Auto-generated CLI reference updated with --group flag entries and updated help_long strings for start, stop, and restart.
docs/cli/start.md	Docs updated with --group flag usage example and flag description.
docs/cli/stop.md	Docs updated with --group flag usage example and flag description.
docs/cli/restart.md	Docs updated with --group flag usage example and flag description.

_{Reviews (3): Last reviewed commit: "feat(config): impl daemon group" | Re-trigger Greptile}