chore: update .gitignore to include Gitea workflow files

- Added .gitea/workflows/deploy.yml and .gitea/workflows/build.yml to .gitignore to prevent tracking of workflow configuration files.

.gitea/workflows/test.yml

@@ -0,0 +1,75 @@
+name: Run Tests
+
+on:
+  push:
+    branches:
+      - main
+      - production
+      - develop
+    paths:
+      - 'backend/**'
+  pull_request:
+    branches:
+      - main
+      - production
+      - develop
+    paths:
+      - 'backend/**'
+
+jobs:
+  test:
+    name: Run Go Tests
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+
+      - name: Cache Go modules
+        uses: actions/cache@v4
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('backend/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+
+      - name: Install dependencies
+        working-directory: backend
+        run: go mod download
+
+      - name: Run tests
+        working-directory: backend
+        run: go test -v -race -coverprofile=coverage.out ./...
+
+      - name: Upload coverage
+        uses: codecov/codecov-action@v4
+        if: always()
+        with:
+          file: ./backend/coverage.out
+          flags: backend
+          name: backend-coverage
+
+  lint:
+    name: Lint Code
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v4
+        with:
+          version: latest
+          working-directory: backend
+