Docker server mode: missing default-stylesheet.css and 'p is not a function' error

[elbaro]

Description

Running Mux in Docker server mode (ghcr.io/coder/mux:latest and :nightly) fails when trying to stream messages.

Steps to Reproduce

docker run -p 3000:3000 -v mux-data:/root/.mux ghcr.io/coder/mux:latest --host 0.0.0.0 --port 3000 --no-auth

1. Open http://localhost:3000
2. Create a workspace with any project directory
3. Send any message (e.g., "hi")

Errors

Two errors appear in sequence:

ENOENT: no such file or directory, open '/app/browser/default-stylesheet.css'

Stream message error: TypeError: p is not a function
    at I7c (/app/dist/runtime/server-bundle.js:1697:2629)
    at ymi.streamMessage (/app/dist/runtime/server-bundle.js:3313:880)
    at E0i.streamWithHistory (/app/dist/runtime/server-bundle.js:3361:30764)

The file /app/browser/default-stylesheet.css does not exist anywhere in the container image. The p is not a function error appears to be a bundling issue where a dependency was not correctly included in the server bundle.

Environment

• Image: ghcr.io/coder/mux:latest and ghcr.io/coder/mux:nightly
• Platform: linux/amd64
• Running in Kubernetes (also reproducible with plain Docker)