Add pre-commit hooks and blame-ignore for the lint/format commit

.git-blame-ignore-revs

@@ -0,0 +1,3 @@
+# Mass lint/format commits that add noise to git blame.
+# Enable locally with: git config blame.ignoreRevsFile .git-blame-ignore-revs
+38f3cce # Apply linters and formatters

.gitignore

@@ -20,3 +20,5 @@ package-lock.json
 .*
 !.gitignore
 !.gitea/
+!.git-blame-ignore-revs
+!.pre-commit-config.yaml

lefthook.yml

@@ -0,0 +1,19 @@
+pre-commit:
+  parallel: true
+  commands:
+    ruff-check:
+      glob: "*.py"
+      run: .venv/bin/ruff check --fix {staged_files}
+      stage_fixed: true
+    ruff-format:
+      glob: "*.py"
+      run: .venv/bin/ruff format {staged_files}
+      stage_fixed: true
+    oxlint:
+      glob: "frontend/src/**"
+      run: npm --prefix frontend run lint
+      stage_fixed: true
+    oxfmt:
+      glob: "frontend/src/**"
+      run: npm --prefix frontend run format
+      stage_fixed: true

pyproject.toml

@@ -63,6 +63,7 @@ gui = [
 [dependency-groups]
 dev = [
     "httpx>=0.28.1",
+    "lefthook>=2.1.14",
     "ruff>=0.15.14",
     "setuptools-scm>=8",
 ]