Add membership fee system with disability discount and fix document permissions

Features:
- Implement two fee types: entrance fee and annual fee (both NT$1,000)
- Add 50% discount for disability certificate holders
- Add disability certificate upload in member profile
- Integrate disability verification into cashier approval workflow
- Add membership fee settings in system admin

Document permissions:
- Fix hard-coded role logic in Document model
- Use permission-based authorization instead of role checks

Additional features:
- Add announcements, general ledger, and trial balance modules
- Add income management and accounting entries
- Add comprehensive test suite with factories
- Update UI translations to Traditional Chinese

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

resources/views/member/submit-payment.blade.php

@@ -9,6 +9,46 @@
         <div class="mx-auto max-w-2xl sm:px-6 lg:px-8">
             <div class="bg-white shadow sm:rounded-lg dark:bg-gray-800 px-4 py-5 sm:p-6">
 
+                {{-- Fee Summary --}}
+                <div class="mb-6 bg-white dark:bg-gray-700 border border-gray-200 dark:border-gray-600 rounded-lg p-4">
+                    <h3 class="text-lg font-medium text-gray-900 dark:text-gray-100 mb-4">會費明細</h3>
+
+                    <div class="space-y-2">
+                        <div class="flex justify-between text-sm">
+                            <span class="text-gray-600 dark:text-gray-400">會費類型</span>
+                            <span class="font-medium text-gray-900 dark:text-gray-100">
+                                {{ $feeDetails['fee_type'] === 'entrance_fee' ? '入會會費' : '常年會費' }}
+                            </span>
+                        </div>
+                        <div class="flex justify-between text-sm">
+                            <span class="text-gray-600 dark:text-gray-400">原始金額</span>
+                            <span class="text-gray-900 dark:text-gray-100">NT$ {{ number_format($feeDetails['base_amount']) }}</span>
+                        </div>
+                        @if($feeDetails['disability_discount'])
+                        <div class="flex justify-between text-sm text-green-600 dark:text-green-400">
+                            <span>身心障礙優惠</span>
+                            <span>-NT$ {{ number_format($feeDetails['discount_amount']) }}</span>
+                        </div>
+                        @endif
+                        <div class="border-t border-gray-200 dark:border-gray-600 pt-2 mt-2">
+                            <div class="flex justify-between text-base font-semibold">
+                                <span class="text-gray-900 dark:text-gray-100">應繳金額</span>
+                                <span class="text-indigo-600 dark:text-indigo-400">NT$ {{ number_format($feeDetails['final_amount']) }}</span>
+                            </div>
+                        </div>
+                    </div>
+
+                    @if(!$feeDetails['disability_discount'] && !$member->hasApprovedDisability())
+                    <div class="mt-4 p-3 bg-yellow-50 dark:bg-yellow-900/30 rounded-md">
+                        <p class="text-sm text-yellow-800 dark:text-yellow-200">
+                            <strong>提示：</strong>若您持有身心障礙手冊，請先至
+                            <a href="{{ route('profile.edit') }}" class="underline">個人資料頁面</a>
+                            上傳手冊以享有 50% 優惠。
+                        </p>
+                    </div>
+                    @endif
+                </div>
+
                 {{-- Payment Instructions --}}
                 <div class="mb-6 bg-blue-50 dark:bg-blue-900/30 border-l-4 border-blue-400 p-4">
                     <div class="flex">
@@ -18,11 +58,10 @@
                             </svg>
                         </div>
                         <div class="ml-3">
-                            <h3 class="text-sm font-medium text-blue-800 dark:text-blue-200">{{ __('Payment Instructions') }}</h3>
+                            <h3 class="text-sm font-medium text-blue-800 dark:text-blue-200">繳費說明</h3>
                             <div class="mt-2 text-sm text-blue-700 dark:text-blue-300">
-                                <p>{{ __('Annual membership fee: TWD 1,000') }}</p>
-                                <p class="mt-1">{{ __('Please upload your payment receipt (bank transfer, convenience store payment, etc.)') }}</p>
-                                <p class="mt-1">{{ __('Your payment will be reviewed by our staff. You will receive an email notification once approved.') }}</p>
+                                <p>請上傳您的繳費收據（銀行轉帳、超商繳費等）</p>
+                                <p class="mt-1">我們的工作人員將審核您的繳費紀錄，審核通過後會以 Email 通知您。</p>
                             </div>
                         </div>
                     </div>
@@ -34,10 +73,11 @@
                     {{-- Amount --}}
                     <div>
                         <label for="amount" class="block text-sm font-medium text-gray-700 dark:text-gray-300">
-                            {{ __('Payment Amount (TWD)') }} <span class="text-red-500">*</span>
+                            繳費金額 (TWD) <span class="text-red-500">*</span>
                         </label>
-                        <input type="number" name="amount" id="amount" value="{{ old('amount', 1000) }}" required min="0" step="0.01"
+                        <input type="number" name="amount" id="amount" value="{{ old('amount', $feeDetails['final_amount']) }}" required min="{{ $feeDetails['final_amount'] }}" step="1"
                                class="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-indigo-500 focus:ring-indigo-500 sm:text-sm dark:bg-gray-700 dark:border-gray-600 dark:text-gray-100 @error('amount') border-red-300 @enderror">
+                        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">最低繳費金額：NT$ {{ number_format($feeDetails['final_amount']) }}</p>
                         @error('amount')<p class="mt-1 text-sm text-red-600 dark:text-red-400">{{ $message }}</p>@enderror
                     </div>