feat: implement comprehensive project management and client tracking portal with Filament integration

app/Models/ProjectUpdate.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class ProjectUpdate extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'project_id',
+        'user_id',
+        'title',
+        'content',
+        'progress_percent_at_update',
+        'is_public',
+    ];
+
+    protected $casts = [
+        'progress_percent_at_update' => 'integer',
+        'is_public' => 'boolean',
+    ];
+
+    public function project()
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+}