Add GitHub Actions workflows for tests and security scans

- Add go-test.yml workflow to run tests on PRs and main branch commits
- Configure test coverage reporting
- Add CodeQL security analysis workflow for vulnerability detection
- Support multiple Go versions in the test matrix

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,38 @@
+name: "CodeQL Analysis"
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  schedule:
+    - cron: '0 0 * * 0'  # Run once per week at midnight on Sunday
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2

.github/workflows/go-test.yml

@@ -0,0 +1,57 @@
+name: Go Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    name: Run Tests
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: ['1.22', '1.23', '1.24']
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Set up Go ${{ matrix.go-version }}
+      uses: actions/setup-go@v4
+      with:
+        go-version: ${{ matrix.go-version }}
+        cache: true
+
+    - name: Get dependencies
+      run: go mod download
+
+    - name: Verify dependencies
+      run: go mod verify
+
+    - name: Run vet
+      run: go vet ./...
+
+    - name: Run tests with coverage
+      run: go test -race -coverprofile=coverage.out -covermode=atomic ./...
+
+    - name: Upload coverage report
+      uses: codecov/codecov-action@v3
+      with:
+        file: ./coverage.out
+        name: codecov-umbrella
+        fail_ci_if_error: false
+
+  security-scan:
+    name: Security Scan
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Run Gosec Security Scanner
+      uses: securego/gosec@master
+      with:
+        args: ./...