feat: implement internship journal entry system with printable reports and approval workflow

app/Models/InternshipJournalEntry.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class InternshipJournalEntry extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'career_application_id',
+        'day_number',
+        'date',
+        'content',
+    ];
+
+    /**
+     * Get the career application that owns this journal entry.
+     */
+    public function careerApplication()
+    {
+        return $this->belongsTo(CareerApplication::class);
+    }
+}