Skill: document --json-stream flag for rebase, finish, and commit commands

[helixclaw]

Summary

Upstream iloom v0.10.0 added --json-stream support to rebase, finish, and commit commands (NoahCardoza/iloom-cli#635). Our skill docs currently only recommend --json-stream for plan and spin.

Changes Needed

1. openclaw-skill/SKILL.md — Update the quick reference examples for commit and finish to include --json-stream where appropriate
2. references/non-interactive-patterns.md — Add --json-stream to the autonomous patterns for commit, finish, and rebase
3. references/development-commands.md — Document --json-stream availability on these commands
4. references/core-workflow.md — Update finish examples to show --json-stream option

Context

--json-stream enables incremental structured output, which is useful for background monitoring via process action:poll. Previously only plan and spin supported it, so those were the only commands recommended to run in background mode. With this flag on rebase, finish, and commit, these can also be run in background with proper monitoring.

Acceptance Criteria

• All skill docs reference --json-stream where the flag is available
• Background mode patterns updated for commit/finish/rebase
• Examples are consistent with existing plan/spin patterns