v1.9.43: replace Memory quick button with Goroutines (available on all Go targets)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gui/tabs/prometheus_tab.py

@@ -46,7 +46,7 @@ class PrometheusTab(ctk.CTkFrame):
         quick_frame.pack(fill="x", padx=15, pady=(0, 5))
 
         for label, query in [("up", "up"), ("CPU", "process_cpu_seconds_total"),
-                             ("Memory", "node_memory_MemFree_bytes")]:
+                             ("Goroutines", "go_goroutines")]:
             btn = make_icon_button(quick_frame, "metrics", label, width=80,
                                    fg_color="#6b7280", hover_color="#4b5563",
                                    command=lambda q=query: self._run_quick(q))

version.py

@@ -1,6 +1,6 @@
 """Version info for ServerManager."""
 
-__version__ = "1.9.42"
+__version__ = "1.9.43"
 __app_name__ = "ServerManager"
 __author__ = "aibot777"
 __description__ = "Desktop GUI for managing remote servers"