feat: add capabilities endpoint and enhance AGUI event handling (#613)

- Introduced a new endpoint for retrieving runner capabilities at
`/agentic-sessions/:sessionName/agui/capabilities`.
- Implemented the `HandleCapabilities` function to authenticate users,
verify permissions, and proxy requests to the runner.
- Enhanced AGUI event handling by adding support for custom events and
persisting message snapshots for faster reconnections.
- Updated the frontend to utilize the new capabilities endpoint and
replaced the existing chat component with `CopilotChatPanel` for
improved user experience.

This update improves the overall functionality and performance of the
AG-UI system, allowing for better integration with the runner's
capabilities and enhancing user interactions.

Author: Gkrumbach07

.github/workflows/components-build-deploy.yml

@@ -285,18 +285,11 @@ jobs:
             VTEAM_VERSION="${{ github.sha }}" \
             FEEDBACK_URL="https://forms.gle/7XiWrvo6No922DUz6"
 
-      - name: Update backend environment variables
-        if: needs.detect-changes.outputs.backend == 'true'
-        run: |
-          oc set env deployment/backend-api -n ambient-code -c backend-api \
-            CONTENT_SERVICE_IMAGE="quay.io/ambient_code/vteam_backend:${{ steps.image-tags.outputs.backend_tag }}"
-
       - name: Update operator environment variables
         if: needs.detect-changes.outputs.operator == 'true' || needs.detect-changes.outputs.backend == 'true' || needs.detect-changes.outputs.claude-runner == 'true' || needs.detect-changes.outputs.state-sync == 'true'
         run: |
           oc set env deployment/agentic-operator -n ambient-code -c agentic-operator \
             AMBIENT_CODE_RUNNER_IMAGE="quay.io/ambient_code/vteam_claude_runner:${{ steps.image-tags.outputs.runner_tag }}" \
-            CONTENT_SERVICE_IMAGE="quay.io/ambient_code/vteam_backend:${{ steps.image-tags.outputs.backend_tag }}" \
             STATE_SYNC_IMAGE="quay.io/ambient_code/vteam_state_sync:${{ steps.image-tags.outputs.state_sync_tag }}"
 
   deploy-with-disptach:
@@ -350,14 +343,8 @@ jobs:
             VTEAM_VERSION="${{ github.sha }}" \
             FEEDBACK_URL="https://forms.gle/7XiWrvo6No922DUz6"
 
-      - name: Update backend environment variables
-        run: |
-          oc set env deployment/backend-api -n ambient-code -c backend-api \
-            CONTENT_SERVICE_IMAGE="quay.io/ambient_code/vteam_backend:stage"
-
       - name: Update operator environment variables
         run: |
           oc set env deployment/agentic-operator -n ambient-code -c agentic-operator \
             AMBIENT_CODE_RUNNER_IMAGE="quay.io/ambient_code/vteam_claude_runner:stage" \
-            CONTENT_SERVICE_IMAGE="quay.io/ambient_code/vteam_backend:stage" \
             STATE_SYNC_IMAGE="quay.io/ambient_code/vteam_state_sync:stage"

.github/workflows/prod-release-deploy.yaml

@@ -268,14 +268,8 @@ jobs:
             VTEAM_VERSION="${{ needs.release.outputs.new_tag }}" \
             FEEDBACK_URL="https://forms.gle/7XiWrvo6No922DUz6"
 
-      - name: Update backend environment variables
-        run: |
-          oc set env deployment/backend-api -n ambient-code -c backend-api \
-            CONTENT_SERVICE_IMAGE="quay.io/ambient_code/vteam_backend:${{ needs.release.outputs.new_tag }}"
-
       - name: Update operator environment variables
         run: |
           oc set env deployment/agentic-operator -n ambient-code -c agentic-operator \
             AMBIENT_CODE_RUNNER_IMAGE="quay.io/ambient_code/vteam_claude_runner:${{ needs.release.outputs.new_tag }}" \
-            CONTENT_SERVICE_IMAGE="quay.io/ambient_code/vteam_backend:${{ needs.release.outputs.new_tag }}" \
             STATE_SYNC_IMAGE="quay.io/ambient_code/vteam_state_sync:${{ needs.release.outputs.new_tag }}"