macOS CI: build from the dev clone's engines, never from scratch past the 3h runner limit (L1.8)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/release.yml

@@ -12,6 +12,8 @@ jobs:
         shell: bash
         env:
           ELY_RELEASE_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          # The dev clone's engines: LibreOffice from scratch outlasts the runner.
+          ELY_SHARE: /Users/zacharyzhang/Documents/GitHub/ElyOfficeSuite
           ELY_PATH: /Users/zacharyzhang/.cargo/bin:/opt/homebrew/bin
         run: |
           dir=$HOME/ely-ci/ElyOffice