feat(scripts): docker CI image, runner submodule seed, OTA browser apk

Signed-off-by: Anton Afanasyeu <a.afanasieff@gmail.com>

build.config.yml

@@ -0,0 +1,20 @@
+# Canonical CI pipeline for ac-ms-build / docker-build-runner.sh (cluster lab).
+# Referenced from compose-lab-backend.php → build.pipeline_config
+version: 2.1
+parameters:
+  git_ref: next
+  gradle_task: assembleDebug
+  run_tests: true
+  run_native: true
+  run_apk: true
+  auto_ota: true
+  ota_channel: staging
+jobs:
+  android-build:
+    docker:
+      - image: androidcast-ci:00.01.00.1000
+    steps:
+      - checkout
+      - run:
+          name: Gradle pipeline
+          command: ./scripts/ci-build-and-publish-ota.sh