Remote deploy console: stream agent compose up to the browser (0.23.0)

Extends the live deploy console to remote/agent stacks. New agent WS endpoint
`/agent/ws/deploy/{stack_id}` runs `compose up -d` and streams its output; the
central app proxies it through `/ws/agent-deploy/{agent_id}/{stack_id}` (same
pattern + token URL-encoding as the agent-logs proxy) and records an
`agent.stack.start` audit entry. The editor's remote Deploy path now opens the
DeployConsole (agentId) instead of the blocking `agentsApi.action(start)`.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

README.md

@@ -26,6 +26,8 @@ as intuitive as Dockge, as capable as Portainer for Compose workflows.
 - **Live deploy console** — deploying from the editor streams `compose up`
   output (image pulls, container creation) over a WebSocket in real time instead
   of a blind spinner; the deploy keeps running server-side if the modal is closed.
+  Works for **remote** stacks too — the central app proxies the agent's deploy
+  stream through to the browser.
 - **Monaco editor** — YAML editing with an `.env` tab and a **`docker run` →
   compose** converter.
 - **Dashboard** — system resource bar, stack grid with quick actions, and a