fix(ci): restore x-access-token format, use repo-level secret

Org secrets weren't propagating. Switched to repo-level secrets
and restored x-access-token:TOKEN format for fine-grained PAT.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jt55401

.github/workflows/ci.yml

@@ -30,8 +30,8 @@ jobs:
         env:
           TOKEN: ${{ secrets.HTMLTRUST_PKG_TOKEN }}
         run: |
-          git config --global url."https://${TOKEN}@github.com/".insteadOf "https://github.com/"
-          git config --global url."https://${TOKEN}@github.com/".insteadOf "ssh://git@github.com/"
+          git config --global url."https://x-access-token:${TOKEN}@github.com/".insteadOf "https://github.com/"
+          git config --global url."https://x-access-token:${TOKEN}@github.com/".insteadOf "ssh://git@github.com/"
 
       - name: Install dependencies
         run: npm ci