chore(ci): bootstrap CI + hooks

Squash-merge bootstrap-cicd into integration

docker/ci.compose.yml

@@ -0,0 +1,13 @@
+services:
+  ci:
+    build:
+      context: ..
+      dockerfile: ci.Dockerfile
+    working_dir: /workspace
+    volumes:
+      - "../:/workspace:Z"
+    environment:
+      - IN_CI_CONTAINER=1
+    entrypoint: ["bash","-lc"]
+    command: ["bash"]
+