Add subnet compression for IP address display

Compress IPv4 addresses from same subnet to save space. Shows first IP in full (192.168.30.1) and subsequent IPs in same subnet with only last octet (100, 142).

Version bump to 0.1.163

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.162"
+version = "0.1.163"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.162"
+version = "0.1.163"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -324,7 +324,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.162"
+version = "0.1.163"
 dependencies = [
  "chrono",
  "serde",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.162"
+version = "0.1.163"
 edition = "2021"
 
 [dependencies]

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.162"
+version = "0.1.163"
 edition = "2021"
 
 [dependencies]

dashboard/src/ui/widgets/system.rs

@@ -580,6 +580,42 @@ impl SystemWidget {
         lines
     }
 
+    /// Compress IPv4 addresses from same subnet
+    /// Example: "192.168.30.1, 192.168.30.100" -> "192.168.30.1, 100"
+    fn compress_ipv4_addresses(addresses: &[String]) -> String {
+        if addresses.is_empty() {
+            return String::new();
+        }
+
+        if addresses.len() == 1 {
+            return addresses[0].clone();
+        }
+
+        let mut result = Vec::new();
+        let mut last_prefix = String::new();
+
+        for addr in addresses {
+            let parts: Vec<&str> = addr.split('.').collect();
+            if parts.len() == 4 {
+                let prefix = format!("{}.{}.{}", parts[0], parts[1], parts[2]);
+
+                if prefix == last_prefix {
+                    // Same subnet, show only last octet
+                    result.push(parts[3].to_string());
+                } else {
+                    // Different subnet, show full IP
+                    result.push(addr.clone());
+                    last_prefix = prefix;
+                }
+            } else {
+                // Invalid IP format, show as-is
+                result.push(addr.clone());
+            }
+        }
+
+        result.join(", ")
+    }
+
     /// Render network section for display
     fn render_network(&self) -> Vec<Line<'_>> {
         let mut lines = Vec::new();
@@ -595,12 +631,12 @@ impl SystemWidget {
             // Show interface name
             let mut interface_text = format!("{}: ", interface.name);
 
-            // Add IPv4 addresses
+            // Add compressed IPv4 addresses
             if !interface.ipv4_addresses.is_empty() {
-                interface_text.push_str(&interface.ipv4_addresses.join(", "));
+                interface_text.push_str(&Self::compress_ipv4_addresses(&interface.ipv4_addresses));
             }
 
-            // Add IPv6 addresses
+            // Add IPv6 addresses (no compression for now)
             if !interface.ipv6_addresses.is_empty() {
                 if !interface.ipv4_addresses.is_empty() {
                     interface_text.push_str(", ");

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.162"
+version = "0.1.163"
 edition = "2021"
 
 [dependencies]