feat: add notes management feature with CRUD operations

- Created Note model and controller for handling notes.
- Added routes for notes CRUD operations.
- Implemented notes index view with search and pinning functionality.
- Created migration for notes table with necessary fields.
- Developed event creation form with client and contract options.

resources/views/layouts/app.blade.php

@@ -121,6 +121,12 @@
             <span class="text-lg shrink-0">📁</span> Files
         </a>
 
+        <a href="{{ route('notes.index') }}"
+           @click="sidebarOpen = false"
+           class="nav-item {{ request()->routeIs('notes.*') ? 'active' : '' }}">
+            <span class="text-lg shrink-0">📝</span> Notes
+        </a>
+
         <div class="text-xs font-bold text-gray-400 uppercase tracking-wider mt-4 mb-1 px-2">Settings</div>
 
         <a href="{{ route('settings.notifications') }}"
@@ -223,7 +229,7 @@
                 {{-- Avatar --}}
                 <div class="w-8 h-8 lg:w-9 lg:h-9 rounded-full flex items-center justify-center text-white font-bold text-xs lg:text-sm shadow-sm"
                      style="background: linear-gradient(135deg, #FFB7C5, #E8D5F5);">
-                    KOL
+                    FUN
                 </div>
             </div>
         </header>