fix: replace inlang ninja action with better custom setup

.github/workflows/i18n.yml

@@ -0,0 +1,34 @@
+name: i18n
+
+on:
+  push:
+
+permissions:
+  contents: read
+
+jobs:
+  checks:
+    name: validate i18n
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@e303250a2450c28e843bf798954fac81d4835f68
+        with:
+          version: 9.15.4
+
+      - name: Use Node.js 22
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.13.0
+          cache: "pnpm"
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Validate
+        run: pnpm i18n:validate
+
+      - name: Lint
+        run: pnpm i18n:lint

.github/workflows/main.yml

@@ -1,4 +1,4 @@
-name: CI
+name: ci
 on:
   push:
   release:
@@ -11,8 +11,8 @@ env:
   # Change this to upload the built image to your own organization.
   docker_tag_prefix: ghcr.io/tietokilta
 jobs:
-  build:
-    name: Format, Lint, Check types & Build
+  checks:
+    name: format, lint, check types, build, test
     runs-on: ubuntu-latest
     services:
       postgres:

package.json

@@ -19,11 +19,14 @@
 		"db:push:force": "drizzle-kit push --force",
 		"db:seed": "tsx --env-file=.env src/lib/server/db/seed.ts",
 		"db:migrate": "drizzle-kit migrate",
-		"db:studio": "drizzle-kit studio"
+		"db:studio": "drizzle-kit studio",
+		"i18n:validate": "inlang validate --project project.inlang",
+		"i18n:lint": "inlang lint --project project.inlang"
 	},
 	"devDependencies": {
 		"@eslint/compat": "^1.2.5",
 		"@eslint/js": "^9.19.0",
+		"@inlang/cli": "^2.18.1",
 		"@inlang/message-lint-rule-empty-pattern": "^1.4.8",
 		"@inlang/message-lint-rule-identical-pattern": "^1.5.9",
 		"@inlang/message-lint-rule-missing-translation": "^1.4.8",