[BUG] DoltLab cannot resolve URLs to branches containing '/'

Branches containing a slash (/) such as feature/test cannot be resolved/opened correctly in the DoltLab UI. The generated URL appears to treat the slash as a path separator instead of part of the branch name. Expected behavior is that branch names are URL-encoded and resolved correctly. Existing issue #5341 may be related but this reproduces during branch navigation/resolution in the UI.

DoltLab version 2.6.0
Exact URL that fails: https://*.net/repositories/*/*/doc/feature%2Ftest
Error message / HTTP status: Not Found - The requested URL was not found on this server.
The branch exists and is accessible via dolt sql-server and dolt CLI

Start by reproducing the exact DoltLab UI URL for the existing feature/test branch and inspect the branch navigation and URL-resolution entry points. Confirm that a slash-containing branch name remains encoded as part of the branch name and that the page opens instead of returning Not Found.

Written by the indexing model from the issue text.