[bug] Local repositories with a space or non-ASCII character in the path cannot be indexed #1689

Describe the bug

A local repository (file:// connection) whose path contains a space or a non-ASCII character is discovered but can't be indexed or browsed. getRepoPath in packages/shared/src/utils.ts returns new URL(cloneUrl).pathname, which is percent-encoded, so /Users/me/Code Projects/my repo becomes /Users/me/Code%20Projects/my%20repo. That path is handed to zoekt-git-index and the web git APIs, and it does not exist on disk.

Expected: the on-disk path (fileURLToPath(cloneUrl)).

To reproduce

1. Add a local repo connection for a directory with a space in its path, e.g. file:///repos/my repo.
2. The repo shows up, but indexing fails and the file browser can't open it.

Or in code: getRepoPath({ cloneUrl: 'file:///Users/me/Code Projects/my repo', ... }) returns path: '/Users/me/Code%20Projects/my%20repo'.

Sourcebot deployment information

Sourcebot version (e.g. v3.0.1): main @ b493151 (found reading the source and confirmed with a unit test, not on a deployment)

Additional information

Related to #1385 (Compose mounts for paths with spaces), but this is the path lookup itself. I have a small fix with tests ready and will open a PR that links this issue. (Found by an AI coding agent working for the breken-ai account.)