Initial public release tree

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*.egg-info/
+dist/
+build/
+
+# Virtual environment
+.venv/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Local Claude session/memory data (the .claude/skills/ dir IS tracked)
+.claude/projects/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Test outputs
+samples/result_*.jpg
+
+# Generated synthetic test images (regenerated by samples/generate_test_images.py)
+samples/test_*.jpg
+
+# Debug log (default --debug output file)
+rectify_debug.log
+
+# Sweep outputs (regenerated by samples/sweep_keystone_lines.py)
+doc/sweep_keystone_lines/
+
+# Test photos (real images, too large/private for the repo)
+doc/imgsrc/
+
+# Scratch and demo material not intended for the repo
+doc/demo/
+doc/make_demo.py
+notes/
+
+# Editor backup files
+*~
+*.py~