Fix: Bitbucket Cloud pagination not working beyond first page

Problem

Issue: #295
When fetching repositories from Bitbucket Cloud workspaces with multiple pages of results, Sourcebot fails on the second page with the following error:

[dev:backend] 2025-09-09T19:11:45.876Z error: [bitbucket] Failed to get repos for workspace emilabs: Error: Failed to fetch projects for workspace emilabs: {"type":"error","error":{"message":"Resource not found","detail":"There is no API hosted at this URL.\n\nFor information about our API's, please refer to the documentation at: https://developer.atlassian.com/bitbucket/api/2/reference/"}}

This is caused by the Bitbucket Cloud API returning full URLs (e.g., https://api.bitbucket.org/2.0/repositories/workspace?page=2) in pagination next responses, but openapi-fetch expects separate path and query parameters. The current implementation was passing the full URL directly to the API client, which doesn't recognize the complete URL format.

Solution

This PR implements proper URL parsing for Bitbucket Cloud pagination to separate paths and query parameters. The implementation includes:

1. URL Parsing Function

• Created parseUrl() function that properly extracts pathname and query parameters from full URLs
• Uses the native URL constructor for robust and performant parsing

2. Updated Pagination Handlers

• Updated cloudGetReposForWorkspace() to use parsed URL components
• Updated cloudGetReposForProjects() to use parsed URL components
• Both functions now correctly pass path and query parameters separately to openapi-fetch

Testing

• Manually tested with Bitbucket Cloud workspaces containing multiple pages of repositories
• Verified that pagination now works correctly beyond the first page
• Confirmed that single-page results continue to work as expected
• All existing tests are still passing

Breaking Changes

None. The changes are backward compatible and only affect the internal pagination URL handling.

Notes

• This fix specifically addresses Bitbucket Cloud pagination - Bitbucket Server has another implementation for pagination
• Debug logging includes the parsed path and query for troubleshooting pagination issues