some minor fix (#113)

1. fix ospf route panic if no ipv4 assigned.
2. should refetch global peer latency map every 60s
3. remove regex dep because it's too large and unnecessary.

Cargo.toml

@@ -1,7 +1,7 @@
 [workspace]
 resolver = "2"
-members = ["easytier",  "easytier-gui/src-tauri"]
-default-members = [ "easytier" ]
+members = ["easytier", "easytier-gui/src-tauri"]
+default-members = ["easytier"]
 
 [profile.dev]
 panic = "unwind"