Project Debug Rules (Non-Obvious Only)

Extension logs only visible in "Extension Host" output channel, NOT Debug Console
Webview dev tools accessed via Command Palette > "Developer: Open Webview Developer Tools" (not F12)
Database migrations MUST run from packages/evals/ directory: cd packages/evals && pnpm db:migrate
IPC messages fail silently if not wrapped in try/catch in webview message handlers
Two separate mock systems: src/__mocks__/vscode.js for extension, webview-ui/src/__mocks__/vscode.ts for UI