fix(ci): checkout actual tagged commit on workflow_dispatch, not main HEAD

Author: bocan

.github/workflows/release.yml

@@ -56,6 +56,9 @@ jobs:
         uses: actions/checkout@v6
         with:
           fetch-depth: 0
+          # On workflow_dispatch, check out the actual tagged commit — not main HEAD.
+          # On tag push, github.ref already points at the tag; this is a no-op.
+          ref: ${{ github.event.inputs.tag || github.ref }}
 
       - name: Select Xcode 26
         run: sudo xcode-select -s /Applications/Xcode_26.4.app