devcontainer: Replace background & processes with pm2

[Copilot]

postStartCommand was launching both servers with & backgrounding, which is unreliable in devcontainer lifecycle hooks and leaves processes unmanaged (no restart-on-crash, no logging).

Changes

• ecosystem.config.js (new): pm2 app definitions for two processes:

  • http-server — serves static files on port 5500 via locally installed binary
  • dev-server — runs server/index.js --dev

• .devcontainer/devcontainer.json:

  • postCreateCommand: installs pm2 globally + root deps + server deps
  • postStartCommand: pm2 start ecosystem.config.js

• package.json: adds http-server ^14.1.1 as a devDependency (replaces one-off npx -y download on each start)

// Before
"postStartCommand": "npx -y http-server -p 5500 -c-1 . & node server/index.js --dev &"

// After
"postCreateCommand": "npm install -g pm2 && npm install && cd server && npm install",
"postStartCommand": "pm2 start ecosystem.config.js"

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Project	Deployment	Actions	Updated (UTC)
chatassistx	Ready	Preview, Comment	Mar 20, 2026 9:03am