Simplify D1 database access and add fallback to LocalStorage for Edge Runtime compatibility

src/app/api/debug/env/route.ts

@@ -1,42 +1,22 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
-import { NextRequest, NextResponse } from 'next/server';
+import { NextResponse } from 'next/server';
 
 export const runtime = 'edge';
 
-export async function GET(request: NextRequest) {
+export async function GET() {
   try {
-    const debugInfo = {
+    return NextResponse.json({
+      status: 'ok',
       timestamp: new Date().toISOString(),
-      environment: {
-        NODE_ENV: process.env.NODE_ENV,
-        NEXT_PUBLIC_STORAGE_TYPE: process.env.NEXT_PUBLIC_STORAGE_TYPE,
-        USERNAME: process.env.USERNAME ? '***' : undefined,
-        PASSWORD: process.env.PASSWORD ? '***' : undefined,
-      },
-      globalThis: {
-        hasDB: typeof globalThis !== 'undefined' && !!(globalThis as any).DB,
-        hasProcess: typeof globalThis !== 'undefined' && !!(globalThis as any).process,
-        hasCloudflare: typeof globalThis !== 'undefined' && !!(globalThis as any).cloudflare,
-      },
-      processEnv: {
-        hasDB: !!(process.env as any).DB,
-        keys: Object.keys(process.env).filter(key => 
-          key.startsWith('DB') || 
-          key.startsWith('NEXT_') || 
-          key.startsWith('CF_') ||
-          key.startsWith('CLOUDFLARE_')
-        ),
-      },
       runtime: 'edge',
-      userAgent: request.headers.get('user-agent')?.slice(0, 100),
-    };
-
-    return NextResponse.json(debugInfo);
+      storageType: process.env.NEXT_PUBLIC_STORAGE_TYPE || 'localstorage',
+      hasDB: !!(globalThis as any).DB,
+      nodeEnv: process.env.NODE_ENV
+    });
   } catch (error) {
     return NextResponse.json({
-      error: 'Debug info collection failed',
-      message: error instanceof Error ? error.message : 'Unknown error',
-      timestamp: new Date().toISOString()
+      error: 'Debug failed',
+      message: error instanceof Error ? error.message : 'Unknown error'
     }, { status: 500 });
   }
 }