ci: Fix artifact sig globs in release workflow.

Author: Splode

.github/workflows/release.yml

@@ -281,9 +281,12 @@ jobs:
           PUB_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
 
           # Read Ed25519 .sig files generated by Tauri during build.
-          APPIMAGE_SIG=$(cat dist/linux/appimage/*.AppImage.sig 2>/dev/null || echo "")
-          DMG_SIG=$(cat dist/macos/*.dmg.sig 2>/dev/null || echo "")
-          NSIS_SIG=$(cat dist/windows/nsis/*-setup.exe.sig 2>/dev/null || echo "")
+          # Use find to avoid path assumptions — upload-artifact@v4 preserves
+          # the full workspace-relative path inside the artifact, so the files
+          # land at an unpredictable depth under the dist/ subdirectory.
+          APPIMAGE_SIG=$(find dist/linux -name "*.AppImage.sig" | head -1 | xargs cat 2>/dev/null || echo "")
+          DMG_SIG=$(find dist/macos -name "*.dmg.sig" | head -1 | xargs cat 2>/dev/null || echo "")
+          NSIS_SIG=$(find dist/windows -name "*-setup.exe.sig" | head -1 | xargs cat 2>/dev/null || echo "")
 
           jq -n \
             --arg version "$VERSION" \