feat: Worktree isolation, auto-branch, review memory, verbose tool details

[terraboops]

Summary

• Git worktree isolation: Implementer runs in an isolated worktree under ~/.config/autonav/worktrees/, cleaned up on exit — keeps the user's code directory untouched
• Auto-branch: Generates branch name from first plan summary when --branch is not provided (e.g., feat/add-user-auth)
• Review loop memory (anti-oscillation): Accumulates ReviewRound history across rounds, passes to reviewer and fixer to prevent contradictory feedback
• Verbose tool details: Shows Bash commands, file paths, search patterns in --verbose mode instead of just tool names
• Improved uncommitted changes UI: Shows file list with color-coded status indicators, adds [v] View diff option
• PR creation fix: Auto-generated branches can now create PRs (uses activeBranch instead of options.branch)
• Claude config in panel: Shows CLAUDE_CONFIG_DIR in start panel so you know which account you're using

Test plan

• Run autonav memento <code-dir> <nav-dir> --task "test" --max-iterations 1 --verbose — verify worktree created/cleaned up
• Run without --branch — verify auto-branch from plan summary
• Run with --branch my-branch — verify explicit branch still works
• Make uncommitted changes, run memento — verify file list and [v] option
• Run with --verbose — verify Bash commands and file paths shown
• Trigger review rounds — verify history passed in round 2+ prompts

🤖 Generated with Claude Code