feat: add Help page with search, streamline copilot, misc UI fixes

Adds searchable Help/User Guide page, trims copilot tool bloat,
adds OTHER department option, and various form/layout improvements.

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

frontend/src/components/DriverForm.tsx

@@ -114,6 +114,7 @@ export function DriverForm({ driver, onSubmit, onCancel, isSubmitting }: DriverF
               <option value="">Select Department</option>
               <option value="OFFICE_OF_DEVELOPMENT">Office of Development</option>
               <option value="ADMIN">Admin</option>
+              <option value="OTHER">Other</option>
             </select>
           </div>
 

frontend/src/components/Layout.tsx

@@ -22,6 +22,7 @@ import {
   Phone,
   AlertCircle,
   FileText,
+  HelpCircle,
 } from 'lucide-react';
 import { UserMenu } from '@/components/UserMenu';
 import { AppearanceMenu } from '@/components/AppearanceMenu';
@@ -98,6 +99,7 @@ export function Layout({ children }: LayoutProps) {
     { name: 'Reports', href: '/reports', icon: FileText },
     { name: 'GPS Tracking', href: '/gps-tracking', icon: Radio },
     { name: 'Admin Tools', href: '/admin-tools', icon: Settings },
+    { name: 'Help Guide', href: '/help', icon: HelpCircle },
   ];
 
   // Filter navigation based on role and CASL permissions

frontend/src/components/VIPForm.tsx

@@ -196,6 +196,7 @@ export function VIPForm({ vip, onSubmit, onCancel, isSubmitting }: VIPFormProps)
             >
               <option value="OFFICE_OF_DEVELOPMENT">Office of Development</option>
               <option value="ADMIN">Admin</option>
+              <option value="OTHER">Other</option>
             </select>
           </div>