improvemets & fixes:

- added 'open with' handling to desktop shortcuts
- move logs button to app configuration
- fix sync progress disappearing after long hashing
- fix sync double file counter
- merge wine and proton prefix folders via symlink

src/wines.js

@@ -167,14 +167,31 @@ function applyDisplayName(w) {
 // A build keeps its folder and id (apps point at the id, and prefix symlinks
 // point inside the folder), so "renaming" only changes the shown label.
 function setWineDisplayName(id, name) {
+  const clean = normalizeLabel(name)
+  if (!clean) return { ok: false, error: 'invalidName' }
+  return writeWineLabel(id, clean)
+}
+
+// Clears a custom label back to the folder-derived one: what the LAN sync
+// calls when the sender never renamed the build. The rename dialog never
+// clears - an empty name there is an error (setWineDisplayName above).
+function clearWineDisplayName(id) {
+  return writeWineLabel(id, '')
+}
+
+function writeWineLabel(id, clean) {
   const wines = getWines()
   const w = wines.find(x => x.id === id)
   if (!w) return { ok: false, error: 'notFound' }
   if (w.type === 'system') return { ok: false, error: 'isSystem' }
-  const clean = normalizeLabel(name)
-  if (!clean) return { ok: false, error: 'invalidName' }
-  w.displayName = clean
-  applyDisplayName(w)
+  if (clean) {
+    w.displayName = clean
+    w.label = clean
+  } else {
+    if (!w.displayName) return { ok: true, displayName: '' }
+    delete w.displayName
+    w.label = labelFor(w.type, w.path, w.version)
+  }
   writeJson(REGISTRY, wines.map(wineRel))
   return { ok: true, displayName: clean }
 }
@@ -241,6 +258,16 @@ async function fixBuildSymlinks(root) {
 // Everything a freshly arrived build needs before it can run: relative links
 // and executable binaries. Returns what was changed, for the callers' reports.
 async function healBuild(root) {
+  // a build folder that IS a symlink (kept on another disk) is left alone:
+  // the walk would follow the link and edit its target, which is not
+  // necessarily part of this launcher's trees
+  let st = null
+  try {
+    st = fs.lstatSync(root)
+  } catch {
+    return { links: 0, executables: 0 }
+  }
+  if (!st.isDirectory()) return { links: 0, executables: 0 }
   const links = await fixBuildSymlinks(root)
   const executables = await restoreExecutableBits(root)
   return { links, executables }
@@ -316,4 +343,4 @@ async function importWineFolder(srcDir, onProgress) {
   return { ok: true, path: toPortablePath(dst), symlinksFixed: healed.links, executablesFixed: healed.executables }
 }
 
-module.exports = { refreshWines, getWines, getWine, resolveWine, setWineDisabled, setWineDisplayName, getDefaultWine, setDefaultWine, deleteWine, importWineFolder, findWineBinary, detectType, fixBuildSymlinks, healBuild }
+module.exports = { refreshWines, getWines, getWine, resolveWine, setWineDisabled, setWineDisplayName, clearWineDisplayName, getDefaultWine, setDefaultWine, deleteWine, importWineFolder, findWineBinary, detectType, fixBuildSymlinks, healBuild }