test with single radio - mqtt success at broker

.github/actions/setup-build-environment/action.yml

@@ -44,6 +44,7 @@ runs:
     #   companion-wifi-v1.15.0
     #   repeater-bridge-espnow-v1.15.0
     #   observer-eastmesh-bridge-espnow-v2026.5.1
+    #   observer-eastmesh-bridge-mqtt-v2026.7.0
     #   observer-eastmesh-v2026.5.1
     # with OFFICIAL_MESHCORE_VERSION=v1.15.0 configured as a GitHub variable.
     #
@@ -85,6 +86,12 @@ runs:
             exit 1
           fi
           EASTMESH_VERSION="${BASH_REMATCH[1]}"
+        elif [[ "$GIT_TAG_NAME" =~ ^observer-eastmesh-bridge-mqtt-(v[[:alnum:]._-]+)$ ]]; then
+          if [[ -z "$STATIC_OFFICIAL_VERSION" ]]; then
+            echo "OFFICIAL_MESHCORE_VERSION must be set for EastMesh release tags" >&2
+            exit 1
+          fi
+          EASTMESH_VERSION="${BASH_REMATCH[1]}"
         elif [[ "$GIT_TAG_NAME" =~ ^companion-wifi-(v[[:alnum:]._-]+)$ ]]; then
           FIRMWARE_VERSION="${BASH_REMATCH[1]}"
         elif [[ "$GIT_TAG_NAME" =~ ^repeater-bridge-espnow-(v[[:alnum:]._-]+)$ ]]; then

.github/workflows/eastmesh-build-observer-mqtt-bridge-firmwares.yml

@@ -0,0 +1,41 @@
+name: EastMesh Build Observer MQTT Bridge Firmwares
+
+permissions:
+  contents: write
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "observer-eastmesh-bridge-mqtt-v*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      OFFICIAL_MESHCORE_VERSION: ${{ vars.OFFICIAL_MESHCORE_VERSION }}
+      PLATFORMIO_BUILD_FLAGS: -UMQTT_DEBUG
+    steps:
+      - name: Clone Repo
+        uses: actions/checkout@v6
+
+      - name: Setup Build Environment
+        uses: ./.github/actions/setup-build-environment
+
+      - name: Build Firmwares
+        run: /usr/bin/env bash eastmesh-build.sh build-observer-mqtt-bridge-firmwares
+
+      - name: Upload Workflow Artifacts
+        uses: actions/upload-artifact@v7
+        with:
+          name: observer-bridge-mqtt-firmwares
+          path: out
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v3
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          name: Observer EastMesh Firmware with MQTT Bridge ${{ env.RELEASE_VERSION }}
+          body: ""
+          draft: true
+          files: out/*