feat: implement skeleton phase

.pre-commit-config.yaml

@@ -0,0 +1,18 @@
+repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.15.13
+    hooks:
+      - id: ruff-check
+        types_or: [python, pyi]
+        args: [--fix]
+      - id: ruff-format
+        types_or: [python, pyi]
+
+  - repo: local
+    hooks:
+      - id: ty
+        name: ty check
+        entry: uvx ty check
+        language: python
+        types_or: [python, pyi]
+        pass_filenames: false