Fix tests and swagger (#33)

* Fix test cases and update swagger documentation

- Fixed all failing test cases by correcting mock expectations
- Updated swagger annotations for all API endpoints
- Added missing swagger documentation for product details and update handlers
- Added swagger documentation for health check endpoint
- Fixed swagger comment format issues
- Regenerated complete swagger documentation
- All tests now passing (100% success rate)
- Complete API documentation coverage for all 9 endpoints

* Fix GitHub Actions workflow: Replace golangci-lint-action with local installation

- Remove golangci/golangci-lint-action@v8 which is not allowed in this repository
- Replace with local golangci-lint installation using curl
- Fix security restriction error in GitHub Actions
- Maintain same linting functionality with local installation

* fix github action

Author: MitulShah1

.github/workflows/go.yml

@@ -1,49 +1,56 @@
-# This workflow will build a golang project
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
-
 name: Go
 
 on:
   push:
-    branches: [ "main" ]
+    branches: [ main ]
   pull_request:
-    branches: [ "main" ]
-
+    branches: [ main ]
+    
 permissions:
   contents: read
 jobs:
-
-  build:
+  test:
+    name: Test
     runs-on: ubuntu-latest
     strategy:
-            matrix:
-                go-version:
-                    - 1.23.x
-                    - 1.24.x
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: Set up Go
-      uses: actions/setup-go@v5
-      with:
-         go-version: '${{ matrix.go-version }}'
-    
-    - name: Install dependencies
-      run: go test -coverprofile=coverage.txt ./...
-
-    - name: Build
-      run: go build -v ./...
-    
-    - name: Install golangci-lint
-      run: curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.57.2
+      matrix:
+        go-version: ['1.23', '1.24']
+        include:
+          - go-version: '1.23'
+            allow-failure: false
+          - go-version: '1.24'
+            allow-failure: false
 
-    - name: Run golangci-lint
-      run: $(go env GOPATH)/bin/golangci-lint run --verbose
-
-    - name: Test
-      run: go test -v ./...
-
-    - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v5
-      with:
-        token: ${{ secrets.CODECOV_TOKEN }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+          check-latest: true
+
+      - name: Install dependencies
+        run: go mod download
+
+      - name: Run tests with coverage
+        run: |
+          go test -v -race -coverprofile=coverage.out ./...
+          go tool cover -func=coverage.out
+        continue-on-error: ${{ matrix.allow-failure }}
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+         token: ${{ secrets.CODECOV_TOKEN }}
+
+      - name: Build
+        run: go build -v ./...
+        continue-on-error: ${{ matrix.allow-failure }}
+
+      - name: Run golangci-lint (v2)
+        uses: golangci/golangci-lint-action@v8
+        with:
+          version: v2.1.0
+          args: --verbose
+        continue-on-error: ${{ matrix.allow-failure }}