Add contract management and invoice settings pages

- Created a new Blade view for managing brand contracts with forms for adding and editing contracts, including client and category selection.
- Implemented success message notifications for contract actions.
- Added a new Blade view for invoice settings, allowing customization of invoice number format, header branding, and default values for new invoices.
- Introduced a new PDF view for generating rate cards with customizable styles based on user profile settings.
- Developed a profile management page for rate cards, enabling users to update their identity, appearance, and visibility settings.

resources/views/content/edit.blade.php

@@ -43,6 +43,22 @@
                         @endforeach
                     </select>
                 </div>
+                <div>
+                    <label class="block text-sm font-semibold text-gray-700 mb-1">Category</label>
+                    <select name="category_id" class="input-soft">
+                        <option value="">— None —</option>
+                        @foreach($categoryTree as $parent)
+                        <option value="{{ $parent->id }}" {{ old('category_id', $brief->category_id) == $parent->id ? 'selected' : '' }}>
+                            {{ $parent->icon }} {{ $parent->name }}
+                        </option>
+                        @foreach($parent->children as $child)
+                        <option value="{{ $child->id }}" {{ old('category_id', $brief->category_id) == $child->id ? 'selected' : '' }}>
+                            &nbsp;&nbsp;↳ {{ $child->name }}
+                        </option>
+                        @endforeach
+                        @endforeach
+                    </select>
+                </div>
                 <div>
                     <label class="block text-sm font-semibold text-gray-700 mb-1">Target Date</label>
                     <input type="date" name="target_date" value="{{ old('target_date', $brief->target_date?->toDateString()) }}" class="input-soft">