Enhance /save and /sync slash commands to attribute commits by author
so Mike and Howard can see at a glance what the other person did.
- sync.sh: loads identity.json, shows incoming/outgoing commits with
author + age before pull/push, groups by author in final summary
- sync.md: describes the new output format + conflict attribution
- save.md: pre-commit Change Summary block + post-commit Summary
Motivation: repo is now shared across team, `git log` alone made it
hard to see "when did Howard change that?" without hunting.
CRITICAL FIX: The /sync command was not pulling remote changes before pushing,
causing machines to miss each other's work.
Changes:
- Created .claude/scripts/sync.sh (automated sync script)
- Created .claude/scripts/sync.bat (Windows wrapper)
- Updated .claude/commands/sync.md to use script
The script ensures:
1. Fetches remote changes FIRST
2. Pulls with rebase (conflict detection)
3. Then pushes local changes
4. Proper error handling
5. Clear status reporting
This fixes the issue where running /sync multiple times did not see
the Mac's changes until manual git fetch was run.
Both Windows and Mac will now use the same reliable sync script.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>