Address code review: fix title, IP validation, menu ordering

Co-authored-by: garrytrinder <11563347+garrytrinder@users.noreply.github.com>

Author: Copilot

package.json

@@ -123,7 +123,7 @@
         },
         {
           "command": "dev-proxy-toolkit.start-with-options",
-          "group": "navigation@1",
+          "group": "navigation@2",
           "when": "!activeEditorIsDirty && isDevProxyConfigFile && !isDevProxyRunning"
         },
         {

src/commands/proxy.ts

@@ -256,7 +256,7 @@ async function startDevProxyWithOptions(devProxyExe: string): Promise<void> {
 
   // Watch PIDs
   const watchPids = await vscode.window.showInputBox({
-    title: 'Start with Options (13/13): Watch PIDs and process names',
+    title: 'Start with Options (13/13): Watch PIDs',
     prompt: 'Enter process IDs to watch (space separated). Leave empty to skip.',
     placeHolder: '1234 5678',
     value: '',
@@ -304,9 +304,16 @@ function validateIpAddress(value: string): string | undefined {
   if (!value) {
     return undefined;
   }
-  if (!/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/.test(value)) {
+  const parts = value.split('.');
+  if (parts.length !== 4) {
     return 'Enter a valid IPv4 address (e.g. 127.0.0.1)';
   }
+  for (const part of parts) {
+    const num = Number(part);
+    if (!/^\d{1,3}$/.test(part) || num < 0 || num > 255) {
+      return 'Enter a valid IPv4 address (e.g. 127.0.0.1)';
+    }
+  }
   return undefined;
 }