fix: build all agents/tools and add latest tag

Add all A2A agents and MCP tools to the build matrix and tag
images as latest on tag pushes.

Closes #133

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Paolo Dettori <dettori@us.ibm.com>

Author: pdettori

.github/workflows/build.yaml

@@ -25,18 +25,42 @@ jobs:
             path: ./a2a
           - name: a2a_currency_converter
             path: ./a2a
-          - name: slack_researcher
+          - name: file_organizer
             path: ./a2a
-          - name: weather_service
+          - name: generic_agent
+            path: ./a2a
+          - name: git_issue_agent
+            path: ./a2a
+          - name: image_service
             path: ./a2a
           - name: reservation_service
             path: ./a2a
-          - name: weather_tool
+          - name: simple_generalist
+            path: ./a2a
+          - name: slack_researcher
+            path: ./a2a
+          - name: weather_service
+            path: ./a2a
+          - name: appworld_apis
             path: ./mcp
-          - name: slack_tool
+          - name: cloud_storage_tool
+            path: ./mcp
+          - name: flight_tool
+            path: ./mcp
+          - name: github_tool
+            path: ./mcp
+          - name: image_tool
+            path: ./mcp
+          - name: movie_tool
             path: ./mcp
           - name: reservation_tool
             path: ./mcp
+          - name: shopping_tool
+            path: ./mcp
+          - name: slack_tool
+            path: ./mcp
+          - name: weather_tool
+            path: ./mcp
 
     steps:
       - name: Checkout repository
@@ -63,6 +87,8 @@ jobs:
           tags: |
             # extract tag from git ref, e.g., v1.0.0 -> 1.0.0
             type=ref,event=tag
+            # also tag as latest on tag push
+            type=raw,value=latest,enable=${{ github.ref_type == 'tag' }}
 
       - name: Build and push ${{ matrix.image_config.name }}
         uses: docker/build-push-action@v6