Sephiria inventory optimizer v0.1.0

- Slab catalog and effect handlers ported from WhiteDog1004/sephiria
- Hill-climbing solver maximizes effect sum on slab-occupied cells
- PIL renderer outputs PNG with effects overlay; downloads + caches slab
  images from img.sephiria.wiki on demand
- Tkinter GUI for picking slabs by tier; CLI also available
- Screenshot recognizer (template matching, beta)
- build.bat / build.sh for portable single-file builds via PyInstaller

.gitignore

@@ -0,0 +1,10 @@
+__pycache__/
+*.pyc
+.venv/
+build/
+dist/
+*.spec
+test_out.png
+cli_test.png
+.idea/
+.vscode/