Update network display format to match CLAUDE.md specification

Nest IP addresses under physical interface names. Show physical interfaces with status icon on header line. Virtual interfaces show inline with compressed IPs.

Format:
● eno1:
  ├─ ip: 192.168.30.105
  └─ tailscale0: 100.125.108.16

Version bump to 0.1.166

CLAUDE.md

@@ -304,6 +304,12 @@ exclude_fs_types = ["tmpfs", "devtmpfs", "sysfs", "proc"]
 ### Display Format
 
 ```
+Network:
+● eno1:
+  ├─ ip: 192.168.30.105
+  └─ tailscale0: 100.125.108.16
+● eno2:
+  └─ ip: 192.168.32.105
 CPU:
 ● Load: 0.23 0.21 0.13
   └─ Freq: 1048 MHz