The gh CLI does not support 'htmlUrl' as a field name in
search repos --json output. It only supports 'url'.
This caused all research pipeline runs to fail silently because
GitHubProvider.search() was querying for 'htmlUrl' which gh returned
as undefined, leading to failed lookups.
Fix:
- Changed --json query parameters from 'htmlUrl' to 'url'
- Updated GitHubRepoResult and GitHubIssueResult types
- Updated all code references from repo.htmlUrl/issue.htmlUrl to repo.url/issue.url
- Updated test mocks accordingly
Fixes: DT-217, DT-218
f738ed208f