fix(browser-bridge): point remediation at the local extension checkout when running from source

[josephkehan-prog]

The problem

When the Browser Bridge extension is not connected, both doctor and the no-extension BrowserConnectError tell the user to download a release zip.

That is correct for a global npm install — package.json's files array ships dist/src/, clis/, skills/, cli-manifest.json, scripts/, README and LICENSE, but not extension/. So an installed copy genuinely has no extension on disk.

It is wrong when running from a source checkout, where extension/manifest.json and a built extension/dist/background.js are already sitting right there. The user gets sent to a download page for files they already have.

The fix

Adds hasLocalExtensionSource(packageRoot) to src/package-paths.ts — checks for extension/manifest.json next to the resolved package root, which is false for a real install per the files list above and true for a checkout — and branches the remediation text on it.

Fixed in both places the stale advice appeared, not just the obvious one:

• src/doctor.ts
• src/browser/daemon-lifecycle.ts (the no-extension BrowserConnectError path)

Output from a checkout now:

[MISSING] Extension: not connected
Issues:
  • Daemon is running but the Chrome/Chromium extension is not connected.
If the extension is already installed, try: opencli daemon restart
If the extension is not installed:
  1. Open chrome://extensions/ → Enable Developer Mode
  2. Click "Load unpacked" → select this checkout's extension/ folder (<repo>/extension)

An installed copy keeps the existing download-the-release guidance unchanged.

Test plan

• npx tsc --noEmit -p . clean.
• unit: 83 files / 1284 tests pass (1 pre-existing unrelated skip).
• extension: 3 files / 96 tests pass.
• adapter: 473 files / 4969 tests pass.
• src/doctor.test.ts specifically: 18/18. Confirmed no test pins the old exact remediation string, so nothing needed updating there.
• Verified the live output above from an actual source checkout.

🤖 Generated with Claude Code

https://claude.ai/code/session_01WRqKZ1vQa29kYHJEr4iRGj