fix: add PUBLIC_API_URL env var to all build steps

.github/workflows/build-and-publish.yaml

@@ -22,10 +22,16 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Checkout source code
+        uses: actions/checkout@v4
+
       - name: Build and push the Docker image
         uses: docker/build-push-action@v6
         with:
+          context: .
           push: true
+          build-args: |
+            PUBLIC_API_URL=https://opt-api.osdci.net
           tags: |
             ghcr.io/project-optima/ttscm-ui:latest
             ghcr.io/project-optima/ttscm-ui:${{ github.event.release.tag_name }}
@@ -47,6 +53,8 @@ jobs:
 
       - name: Build macOS distributables
         run: bun run make:macos
+        env:
+          PUBLIC_API_URL: https://opt-api.osdci.net
 
       - name: Upload macOS artifacts to release
         uses: softprops/action-gh-release@v2
@@ -72,6 +80,8 @@ jobs:
 
       - name: Build Windows distributables
         run: bun run make -- --platform win32
+        env:
+          PUBLIC_API_URL: https://opt-api.osdci.net
 
       - name: Upload Windows artifacts to release
         uses: softprops/action-gh-release@v2