Management UI

Attempt 2 of a management ui.

.dockerignore

@@ -3,6 +3,13 @@ node_modules
 generated
 .git
 .gitea
+# A fully separate app (own package.json, own Dockerfile) — has no
+# business being copied into the main app's build context at all, and
+# its own @/* import alias resolving against the main app's tsconfig
+# (via the include glob's **/*.ts) broke a plain `docker build` here
+# before this line existed.
+manager
+stacks
 .env
 .env.*
 !.env.example