feat(KB-333): update GitHub workflows to use @gsxdsm/fusion package name

- Update CI, release, and test-release workflows to reference @gsxdsm/fusion package\n- Remove obsolete changeset file for unpause fix\n- Clean up unused code in packages/core/src/store.ts

.github/workflows/release.yml

@@ -63,7 +63,7 @@ jobs:
         run: pnpm build
 
       - name: Build binary
-        run: pnpm --filter @dustinbyrne/kb build:exe -- --target ${{ matrix.target }}
+        run: pnpm --filter @gsxdsm/fusion build:exe -- --target ${{ matrix.target }}
 
       - name: Verify binary exists
         shell: bash