Enhance Docker image build workflow

Updated the GitHub Actions workflow to include DockerHub login, setup Buildx, and build & push Docker image with caching.

Author: CodeByAmrit

.github/workflows/docker-image.yml

@@ -0,0 +1,45 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Step 1 — Checkout code
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      # Step 2 — Login to DockerHub
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      # Step 3 — Setup Buildx (for caching + multi-platform)
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # Step 4 — Build and Push
+      - name: Build & Push Docker Image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          platforms: linux/amd64
+          tags: |
+            ${{ secrets.DOCKERHUB_USERNAME }}/streamvision:latest
+            ${{ secrets.DOCKERHUB_USERNAME }}/streamvision:${{ github.run_number }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      # (Optional) Step 5 — Output final image tag
+      - name: Show Image Tag
+        run: echo "Pushed version: ${{ secrets.DOCKERHUB_USERNAME }}/streamvision:${{ github.run_number }}"