git status
git diff --staged  # If changes already staged
git diff           # If changes not staged

feat(architecture): implement unified Solver interface for problem-algorithm separation

- Create VRPProblem, VRPSolution, Solver abstract base classes
- Implement ALNSSolver adapter pattern
- Update quickstart tutorial to demonstrate new interface

chore: update migration progress (9/9 files)

- Update CLAUDE.md completed tasks section
- Add migration entry to MIGRATION_LOG.md
- Update progress statistics

# Git Log - VRP Toolkit Project

*Comprehensive record of all commits with detailed information.*

## Recent Commits (newest first)

### 2026-01-01 - feat(architecture): implement unified Solver interface
**Hash:** 4569fa1
**Author:** [Author Name]
**Date:** 2026-01-01 12:34:56

**Changes:**
- Created base.py module with abstract base classes
- Implemented adapter pattern for backward compatibility
- Updated quickstart tutorial

**Files modified:**
- vrp_toolkit/algorithms/base.py
- vrp_toolkit/algorithms/alns/solver.py
- tutorials/01_quickstart.ipynb

---

### 2025-12-31 - chore: update migration progress (9/9)
**Hash:** 9590014
**Author:** [Author Name]
**Date:** 2025-12-31 10:20:30

**Changes:**
- Updated CLAUDE.md with completed migration status
- Added final migration entry to MIGRATION_LOG.md

**Files modified:**
- .claude/CLAUDE.md
- .claude/MIGRATION_LOG.md

# Stage changes
git add [file1] [file2] ...

# Commit with generated message
git commit -m "feat(architecture): implement unified Solver interface

- Create VRPProblem, VRPSolution, Solver abstract base classes
- Implement ALNSSolver adapter pattern
- Update quickstart tutorial to demonstrate new interface"

# Push to remote (if desired)
git push

git status -s          # Short status
git diff               # Unstaged changes
git diff --staged      # Staged changes
git diff HEAD~1        # Compare with previous commit

git commit -am "msg"   # Stage tracked files and commit
git commit --amend     # Amend last commit
git commit --amend --no-edit  # Amend without changing message

git checkout -b feature-name  # Create and switch branch
git switch -c feature-name    # Modern equivalent
git branch -d branch-name     # Delete local branch

git log --oneline -10         # Last 10 commits, one line
git log --oneline --graph --all  # Graphical history
git show HEAD                 # Show last commit details

git restore --staged file.py  # Unstage file
git restore file.py           # Discard unstaged changes
git reset --soft HEAD~1       # Undo commit, keep changes

git add vrp_toolkit/problems/pdptw.py
git commit -m "feat(migration): migrate instance.py to pdptw.py

- Extract generic Instance class
- Add type hints and docstrings
- Create basic test suite"

git add .claude/CLAUDE.md .claude/MIGRATION_LOG.md
git commit -m "chore: update migration progress (5/9 files)

- Mark instance.py migration as completed
- Update progress statistics
- Add detailed migration entry"

git add tutorials/01_quickstart.ipynb
git commit -m "docs: add quickstart tutorial

- Show basic instance creation
- Demonstrate ALNS solving
- Include visualization examples"

# Get last 20 commits for initial log
git log --oneline -20