chore: 完善模組化架構遷移與修復前端顯示錯誤

- 修正所有模組 Controller 的 Model 引用路徑 (App\Modules\...)
- 更新 ProductionOrder 與 ProductionOrderItem 模型結構以符合新版邏輯
- 修復 resources/js/utils/format.ts 在處理空值時導致 toLocaleString 崩潰的問題
- 清除全域路徑與 Controller 遷移殘留檔案

app/Modules/Finance/Routes/web.php

@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+use App\Modules\Finance\Controllers\UtilityFeeController;
+use App\Modules\Finance\Controllers\AccountingReportController;
+
+Route::middleware('auth')->group(function () {
+    // 公共事業費管理
+    Route::middleware('permission:utility_fees.view')->group(function () {
+        Route::get('/utility-fees', [UtilityFeeController::class, 'index'])->name('utility-fees.index');
+    });
+    Route::middleware('permission:utility_fees.create')->group(function () {
+        Route::post('/utility-fees', [UtilityFeeController::class, 'store'])->name('utility-fees.store');
+    });
+    Route::middleware('permission:utility_fees.edit')->group(function () {
+        Route::put('/utility-fees/{utility_fee}', [UtilityFeeController::class, 'update'])->name('utility-fees.update');
+    });
+    Route::middleware('permission:utility_fees.delete')->group(function () {
+        Route::delete('/utility-fees/{utility_fee}', [UtilityFeeController::class, 'destroy'])->name('utility-fees.destroy');
+    });
+
+    // 會計報表
+    Route::middleware('permission:accounting.view')->prefix('accounting-report')->group(function () {
+        Route::get('/', [AccountingReportController::class, 'index'])->name('accounting.report');
+        Route::get('/export', [AccountingReportController::class, 'export'])
+            ->middleware('permission:accounting.export')
+            ->name('accounting.export');
+    });
+});