feat: Add notification services for Email, Telegram, and WhatsApp

- Implement EmailNotifier for sending batch and test notifications via email.
- Implement TelegramNotifier for sending batch and test notifications via Telegram.
- Implement WahaNotifier for sending batch and test notifications via WhatsApp using WAHA API.
- Create migration for client_categories table and update clients table to include category_id.
- Create migration for notification_settings table to manage notification configurations.
- Add ClientCategorySeeder to populate default client categories.
- Create manifest.json for PWA support.
- Implement service worker (sw.js) for caching static assets and offline support.
- Add edit event view for modifying scheduled events.
- Create search results view for displaying search queries.
- Develop notification settings view for configuring notification channels and triggers.

app/Http/Controllers/SearchController.php

@@ -0,0 +1,143 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers;
+
+use App\Models\Client;
+use App\Models\ContentBrief;
+use App\Models\Event;
+use App\Models\Invoice;
+use App\Models\RateCard;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+class SearchController extends Controller
+{
+    public function index(Request $request): View
+    {
+        $q       = trim($request->get('q', ''));
+        $results = $q ? $this->search($q) : [];
+
+        return view('search.index', compact('q', 'results'));
+    }
+
+    /** Quick AJAX endpoint — returns grouped results for the dropdown */
+    public function quick(Request $request): JsonResponse
+    {
+        $q = trim($request->get('q', ''));
+
+        if (strlen($q) < 2) {
+            return response()->json([]);
+        }
+
+        return response()->json($this->search($q, limit: 5));
+    }
+
+    private function search(string $q, int $limit = 20): array
+    {
+        $groups = [];
+        $like   = "%{$q}%";
+
+        // ── Clients ──────────────────────────────────────────────
+        $clients = Client::where('name', 'LIKE', $like)
+            ->orWhere('email', 'LIKE', $like)
+            ->orWhere('company', 'LIKE', $like)
+            ->orWhere('ig_handle', 'LIKE', $like)
+            ->orWhere('tiktok_handle', 'LIKE', $like)
+            ->limit($limit)->get();
+
+        if ($clients->isNotEmpty()) {
+            $groups[] = [
+                'type'  => 'clients',
+                'label' => '👥 Clients',
+                'items' => $clients->map(fn ($c) => [
+                    'icon'     => '👥',
+                    'title'    => $c->name,
+                    'subtitle' => collect([$c->company, $c->email])->filter()->implode(' · '),
+                    'url'      => route('clients.show', $c),
+                ])->values()->all(),
+            ];
+        }
+
+        // ── Events ───────────────────────────────────────────────
+        $events = Event::with('client')
+            ->where('title', 'LIKE', $like)
+            ->orWhere('description', 'LIKE', $like)
+            ->orWhere('location', 'LIKE', $like)
+            ->limit($limit)->get();
+
+        if ($events->isNotEmpty()) {
+            $groups[] = [
+                'type'  => 'events',
+                'label' => '📅 Events',
+                'items' => $events->map(fn ($e) => [
+                    'icon'     => '📅',
+                    'title'    => $e->title,
+                    'subtitle' => $e->start_time->format('d M Y') . ($e->client ? ' · ' . $e->client->name : ''),
+                    'url'      => route('schedule.index'),
+                ])->values()->all(),
+            ];
+        }
+
+        // ── Invoices ─────────────────────────────────────────────
+        $invoices = Invoice::with('client')
+            ->where('invoice_number', 'LIKE', $like)
+            ->orWhere('title', 'LIKE', $like)
+            ->limit($limit)->get();
+
+        if ($invoices->isNotEmpty()) {
+            $groups[] = [
+                'type'  => 'invoices',
+                'label' => '🧾 Invoices',
+                'items' => $invoices->map(fn ($i) => [
+                    'icon'     => '🧾',
+                    'title'    => $i->invoice_number . ($i->title ? ' — ' . $i->title : ''),
+                    'subtitle' => ($i->client?->name ?? '') . ' · ' . ($i->formatted_total ?? ''),
+                    'url'      => route('invoices.show', $i),
+                ])->values()->all(),
+            ];
+        }
+
+        // ── Content Briefs ───────────────────────────────────────
+        $content = ContentBrief::with('client')
+            ->where('title', 'LIKE', $like)
+            ->orWhere('description', 'LIKE', $like)
+            ->orWhere('platform', 'LIKE', $like)
+            ->limit($limit)->get();
+
+        if ($content->isNotEmpty()) {
+            $groups[] = [
+                'type'  => 'content',
+                'label' => '🎬 Content',
+                'items' => $content->map(fn ($c) => [
+                    'icon'     => $c->platform_icon ?? '🎬',
+                    'title'    => $c->title,
+                    'subtitle' => ucfirst($c->platform) . ($c->client ? ' · ' . $c->client->name : ''),
+                    'url'      => route('content.show', $c),
+                ])->values()->all(),
+            ];
+        }
+
+        // ── Rate Cards ───────────────────────────────────────────
+        $rateCards = RateCard::where('name', 'LIKE', $like)
+            ->orWhere('description', 'LIKE', $like)
+            ->limit($limit)->get();
+
+        if ($rateCards->isNotEmpty()) {
+            $groups[] = [
+                'type'  => 'rate-cards',
+                'label' => '💰 Rate Cards',
+                'items' => $rateCards->map(fn ($r) => [
+                    'icon'     => '💰',
+                    'title'    => $r->name,
+                    'subtitle' => $r->description ?? '',
+                    'url'      => route('rate-cards.edit', $r),
+                ])->values()->all(),
+            ];
+        }
+
+        return $groups;
+    }
+}