feat: Move specs and memory to git for multi-developer collaboration (v1.0.6)

BREAKING CHANGE: Specs, plans, and memory moved from .auto-build-data/ (gitignored)
to .auto-build/ (git-tracked) to enable team collaboration.

Changes:
- Specs/plans now in .auto-build/specs/ (shared with team)
- Memory (patterns, gotchas) now in .auto-build/memory/ (shared with team)
- .auto-build-data/ now only contains local data (worktrees, cache)
- Added /ab:migrate command for existing projects
- Removed symlinks from worktree-create.sh (no longer needed)

Benefits:
- Any developer can continue a plan started by another
- Patterns and gotchas shared across team
- Works on Windows/Linux/Mac without symlinks
- Full version history in git

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugin/commands/qa-review.md

@@ -21,7 +21,7 @@ Run iterative QA review with automatic fix attempts. The system will review code
 ### 1. Initialize
 
 - Determine feature from argument or find active build in status files
-- Load spec and plan from `.auto-build-data/specs/{feature-name}/`
+- Load spec and plan from `.auto-build/specs/{feature-name}/`
 - Create QA iteration directory: `.auto-build-data/cache/qa-iterations/{feature-name}/`
 - Set iteration counter to 0
 - Update status to `QA_REVIEW`
@@ -44,7 +44,7 @@ while iteration < MAX_ITERATIONS:
     - warning: Should fix
     - info: Nice to fix
 
-    Save to: .auto-build-data/cache/qa-iterations/{feature-name}/iteration-{n}.json
+    Save to: `.auto-build-data/cache/qa-iterations/{feature-name}/iteration-{n}.json`
 
     # 2c. Check Exit Condition
     if no errors and no warnings:
@@ -111,7 +111,7 @@ Next steps:
 
 ## Iteration Record Format
 
-`.auto-build-data/cache/qa-iterations/{feature-name}/iteration-{n}.json`:
+`.auto-build-data/cache/qa-iterations/{feature-name}/iteration-{n}.json` (local cache):
 ```json
 {
   "iteration": 1,