feat: 前端分離+功能api化

1. 新增資產管理CRUD、googleOAuth登入
2. 更改原記帳controller

app/Models/Security.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Security extends Model
+{
+    protected $fillable = [
+        'code',
+        'type',
+        'source',
+        'name',
+        'latest_price',
+        'latest_price_at',
+        'change_amount',
+        'change_rate',
+        'meta',
+    ];
+
+    protected $casts = [
+        'latest_price_at' => 'datetime',
+        'latest_price' => 'decimal:4',
+        'change_amount' => 'decimal:4',
+        'change_rate' => 'decimal:4',
+        'meta' => 'array',
+    ];
+
+    public function historicPrices()
+    {
+        return $this->hasMany(SecurityPriceHistories::class, 'security_id', 'id');
+    }
+}