chore: add lefthook and commitlint config

.gitignore

@@ -3,3 +3,4 @@ cache/**
 !cache/.gitkeep
 config.yaml
 bin/**
+node_modules

commitlint.config.ts

@@ -0,0 +1,105 @@
+import type { UserConfig } from "@commitlint/types";
+import { RuleConfigSeverity } from "@commitlint/types";
+
+const Configuration: UserConfig = {
+  extends: ["@commitlint/config-conventional"],
+  formatter: "@commitlint/format",
+  rules: {
+    "header-max-length": [
+      RuleConfigSeverity.Error,
+      "always",
+      Infinity,
+    ] as const,
+    "body-max-length": [RuleConfigSeverity.Error, "always", Infinity] as const,
+    "body-max-line-length": [
+      RuleConfigSeverity.Error,
+      "always",
+      Infinity,
+    ] as const,
+    "type-enum": [
+      RuleConfigSeverity.Error,
+      "always",
+      [
+        "feat",
+        "fix",
+        "perf",
+        "revert",
+        "docs",
+        "chore",
+        "ref",
+        "test",
+        "ci",
+        "deps",
+        "build",
+      ],
+    ],
+  },
+  prompt: {
+    questions: {
+      type: {
+        description: "Select the type of change that you're committing",
+        enum: {
+          feat: {
+            description: "A new feature",
+            title: "Features",
+            emoji: "🆕",
+          },
+          fix: {
+            description: "A bug fix",
+            title: "Bug Fixes",
+            emoji: "🪲",
+          },
+          perf: {
+            description: "A code change that improves performance",
+            title: "Performance Improvements",
+            emoji: "🚀",
+          },
+          revert: {
+            description: "Reverts a previous commit",
+            title: "Reverts",
+            emoji: "⏪",
+          },
+          docs: {
+            description: "Documentation only changes",
+            title: "Documentation",
+            emoji: "📑",
+          },
+          chore: {
+            description: "Other changes that don't modify src or test files",
+            title: "Chores",
+            emoji: "⚓",
+          },
+          ref: {
+            description:
+              "A code change that neither fixes a bug nor adds a feature",
+            title: "Code Refactoring",
+            emoji: "🧹",
+          },
+          test: {
+            description: "Adding missing tests or correcting existing tests",
+            title: "Tests",
+            emoji: "⌛",
+          },
+          ci: {
+            description:
+              "Changes to our CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)",
+            title: "Continuous Integrations",
+            emoji: "♾️",
+          },
+          deps: {
+            description: "Dependencies",
+            title: "Dependencies",
+            emoji: "🛠️",
+          },
+          build: {
+            description: "Build",
+            title: "Build",
+            emoji: "🏗️",
+          },
+        },
+      },
+    },
+  },
+};
+
+export default Configuration;

lefthook.yml

@@ -0,0 +1,14 @@
+pre-push:
+  commands:
+    backend-lint:
+      root: backend/
+      tags: backend
+      glob: "*.go"
+      run: golangci-lint run
+
+    commitlint:
+      tags: commandlint
+      run: |
+        _HEAD=$(git rev-parse HEAD)
+        _COMMITS=$(git rev-list --count HEAD ^main)
+        npx commitlint --from "${_HEAD}"~"${_COMMITS}" --to "${_HEAD}"

package.json

@@ -0,0 +1,8 @@
+{
+  "type": "module",
+  "devDependencies": {
+    "@commitlint/cli": "^19.3.0",
+    "@commitlint/config-conventional": "^19.2.2",
+    "lefthook": "^1.6.15"
+  }
+}