feat: Phase 2 - Laravel Reverb + real-time notifications

- Install laravel/reverb + laravel-echo + pusher-js
- Configure broadcasting to reverb in .env.example + .env
- Add Echo + Pusher client in resources/js/app.js
- Update all 14 notifications to implement ShouldBroadcast + broadcastOn()
- Update NotificationBell component to listen for real-time events
- Add Livewire.emit in notification-bell blade for JS-to-Livewire bridge

Tests: 101 passing (319 assertions)

package-lock.json

@@ -17,8 +17,10 @@
                 "axios": "^1.11.0",
                 "concurrently": "^9.0.1",
                 "daisyui": "^5.5.19",
+                "laravel-echo": "^2.4.0",
                 "laravel-vite-plugin": "^2.0.0",
                 "postcss": "^8.5.12",
+                "pusher-js": "^8.6.0",
                 "tailwindcss": "^3.4.19",
                 "vite": "^7.0.7"
             }
@@ -2156,6 +2158,28 @@
                 "jiti": "lib/jiti-cli.mjs"
             }
         },
+        "node_modules/laravel-echo": {
+            "version": "2.4.0",
+            "resolved": "https://registry.npmjs.org/laravel-echo/-/laravel-echo-2.4.0.tgz",
+            "integrity": "sha512-8w0fAGSNt6THfbNyqdKc29bhfeNpJg13CGx2fcLgoX0/f0mTJm/AIkYTTakmcr9pc42ZB68cSoE00j4/xNaFGQ==",
+            "dev": true,
+            "license": "MIT",
+            "engines": {
+                "node": ">=20"
+            },
+            "peerDependencies": {
+                "pusher-js": "*",
+                "socket.io-client": "*"
+            },
+            "peerDependenciesMeta": {
+                "pusher-js": {
+                    "optional": true
+                },
+                "socket.io-client": {
+                    "optional": true
+                }
+            }
+        },
         "node_modules/laravel-vite-plugin": {
             "version": "2.1.0",
             "resolved": "https://registry.npmjs.org/laravel-vite-plugin/-/laravel-vite-plugin-2.1.0.tgz",
@@ -2832,6 +2856,16 @@
                 "node": ">=10"
             }
         },
+        "node_modules/pusher-js": {
+            "version": "8.6.0",
+            "resolved": "https://registry.npmjs.org/pusher-js/-/pusher-js-8.6.0.tgz",
+            "integrity": "sha512-wShJPfCS/kYkCBVzVW67wa9cnQIgHTszEK2XHNrFkOgGruuGw081aERAxfRjfdFU+WcIt8x6dvbwkTW4iZuQ8Q==",
+            "dev": true,
+            "license": "MIT",
+            "dependencies": {
+                "tweetnacl": "^1.0.3"
+            }
+        },
         "node_modules/queue-microtask": {
             "version": "1.2.3",
             "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
@@ -3266,6 +3300,13 @@
             "dev": true,
             "license": "0BSD"
         },
+        "node_modules/tweetnacl": {
+            "version": "1.0.3",
+            "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-1.0.3.tgz",
+            "integrity": "sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==",
+            "dev": true,
+            "license": "Unlicense"
+        },
         "node_modules/update-browserslist-db": {
             "version": "1.2.3",
             "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz",