Add SealShare file sharing application with encryption, branding, auth, Docker, and Octane support

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Models/Share.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class Share extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'token',
+        'password',
+        'encryption_key',
+        'encryption_salt',
+        'expires_at',
+        'max_downloads',
+        'download_count',
+        'total_size',
+    ];
+
+    /**
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'expires_at' => 'datetime',
+            'max_downloads' => 'integer',
+            'download_count' => 'integer',
+            'total_size' => 'integer',
+            'encryption_key' => 'encrypted',
+        ];
+    }
+
+    /**
+     * @return HasMany<ShareFile, $this>
+     */
+    public function files(): HasMany
+    {
+        return $this->hasMany(ShareFile::class);
+    }
+
+    public function isExpired(): bool
+    {
+        return $this->expires_at && $this->expires_at->isPast();
+    }
+
+    public function isPasswordProtected(): bool
+    {
+        return ! is_null($this->password);
+    }
+
+    public function hasReachedDownloadLimit(): bool
+    {
+        return $this->max_downloads && $this->download_count >= $this->max_downloads;
+    }
+
+    public function getRouteKeyName(): string
+    {
+        return 'token';
+    }
+}