chore(ci): use descriptive backend check names

.github/workflows/ci.yml

@@ -1,11 +1,34 @@
-name: CI
+name: Backend CI
+
 on:
   pull_request:
     branches: [main, dev]
+
+permissions:
+  contents: read
+
 jobs:
-  ci:
-    uses: Sea-Haven-Industries/.github/.github/workflows/ci-dotnet.yaml@main
-    with:
-      dotnet-version: "8.0.x"
-      solution: "SeaHavenIndustries.sln"
-      run-tests: true
+  build-and-test:
+    name: Build and test
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    concurrency:
+      group: backend-ci-${{ github.workflow }}-${{ github.ref }}
+      cancel-in-progress: true
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+
+      - name: Set up .NET
+        uses: actions/setup-dotnet@v6
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Restore
+        run: dotnet restore SeaHavenIndustries.sln
+
+      - name: Build
+        run: dotnet build SeaHavenIndustries.sln --no-restore --configuration Release
+
+      - name: Test
+        run: dotnet test SeaHavenIndustries.sln --no-build --configuration Release