server fails to start when running `dendron publish` commands

[raeyulca]

Please select the area your bug applies to. (Multiple selections are Possible. You can leave blank if you're not sure.)

• Workspace. VSCode workspace, vaults, Intellisense/autocomplete, Dendron settings
• Lookup. Dendron's Lookup Command
• Views. Dendron Preview, Tree View, Side Panels in the UI
• Schema. Dendron Schemas
• Pod. Data import from / export to Dendron
• Publish. External Site Publish
• Markdown. Markdown features, such as syntax support and features

Describe the bug

(Possible duplicate of #3696 but I didn't want to necrobump)

In short, running npx dendron publish dev in a fresh environment fails, with ECONNREFUSED at 127.0.0.1:<port>, where <port> is the port specified for the engine server via config.

Unfortunately, even with LOG_LEVEL=debug, the error log only shows [object object] when printing the error message due to the handling in error2PlainObject.

To Reproduce

Steps to reproduce the behavior:

1. Create a fresh vault.
2. Run npx dendron publish init
3. Run npx dendron publish dev or npx dendron publish export
4. See error

Expected behavior

The publish commands work.

Additional context

I forked this repo, and used JSON.stringify on the error object to elucidate the problem.
The issue is because snapdragon-node is not installed in the template repository (relevant log excerpt below):

ECONNREFUSED
...
 {\n  code: 'MODULE_NOT_FOUND',\n  path: '/workspaces/testvault/private/.next/node_modules/snapdragon-node/package.json',\n  requestPath: 'snapdragon-node'\n}",

can be solved with the following PR: dendronhq/nextjs-template#7