Milestone 3

.pre-commit-config.yaml

@@ -0,0 +1,46 @@
+# Run `pre-commit install` after cloning. CI should run `pre-commit run --all-files`.
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.6.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-json
+      - id: check-added-large-files
+        args: ["--maxkb=512"]
+      - id: detect-private-key
+
+  # Backend — ruff (lint + format)
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.4.10
+    hooks:
+      - id: ruff
+        args: ["--fix"]
+        files: ^backend/.*\.py$
+      - id: ruff-format
+        files: ^backend/.*\.py$
+
+  # Frontend — eslint + tsc via local hooks (must be run from frontend/)
+  - repo: local
+    hooks:
+      - id: eslint
+        name: eslint (frontend)
+        entry: bash -c 'cd frontend && npm run lint'
+        language: system
+        files: ^frontend/.*\.(ts|tsx)$
+        pass_filenames: false
+
+      - id: tsc-noemit
+        name: tsc --noEmit (frontend)
+        entry: bash -c 'cd frontend && npm run typecheck'
+        language: system
+        files: ^frontend/.*\.(ts|tsx)$
+        pass_filenames: false
+
+      - id: prettier
+        name: prettier --check (frontend)
+        entry: bash -c 'cd frontend && npm run format:check'
+        language: system
+        files: ^frontend/.*\.(ts|tsx|css|json|html)$
+        pass_filenames: false