Improve server mount help with detailed instructions

- Add SSHFS section with common options explained
- Add NFS mount example
- Reference NixOS wiki for declarative mounts
- Show unmount hint

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

cli/grapho.lux

@@ -691,10 +691,39 @@ fn doServerMount(): Unit with {Process} = {
         printSuccess("Already mounted at " + serverDir)
     } else {
         printHeader("Mount server")
-        printHint("Mount a remote filesystem to access server storage:")
+        printHint("Mount a remote filesystem to access large files, media, and archives.")
         print("")
-        let ignore = Process.exec("printf '  \\033[2mSSHFS:\\033[0m  sshfs user@host:/path %s\\n' \"" + serverDir + "\" >&2")
+
-        let ignore2 = Process.exec("printf '  \\033[2mNFS:\\033[0m    Configure in your NixOS module\\n' >&2")
+        // SSHFS section
+        printBold("SSHFS (recommended for most users)")
+        printHint("Mounts remote directories over SSH. No server config needed.")
+        print("")
+        printCmd("sshfs user@server:/path " + serverDir)
+        print("")
+        printHint("Useful options:")
+        print("  -o reconnect          Auto-reconnect on connection loss")
+        print("  -o follow_symlinks    Follow symbolic links")
+        print("  -o cache=yes          Enable caching for better performance")
+        print("")
+        printHint("Example with options:")
+        printCmd("sshfs -o reconnect,cache=yes user@server:/data " + serverDir)
+        print("")
+
+        // NFS section
+        printBold("NFS (for local network)")
+        printHint("Faster than SSHFS but requires NFS server setup.")
+        print("")
+        printCmd("sudo mount -t nfs server:/export " + serverDir)
+        print("")
+
+        // NixOS section
+        printBold("NixOS declarative mount")
+        printHint("Add to configuration.nix for automatic mounting.")
+        printHint("See: nixos.wiki/wiki/SSHFS")
+        print("")
+
+        // Unmount hint
+        printHint("To unmount: grapho server unmount")
     }
     print("")
 }