adds github tests

Author: pftg

.github/workflows/test-unit.yml

@@ -0,0 +1,24 @@
+name: unit-tests
+
+on:
+  pull_request:
+
+jobs:
+  unit:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.4'
+          bundler-cache: true
+
+      - name: Run unit tests
+        env:
+          PRECOMPILED_ASSETS: '1'
+          TEST_SERVER_PORT: '1314'
+        run: bundle exec rake test TEST='test/unit/**/*_test.rb'