feat: enhance habitat appearances and item relations

Replace item tags with favorite things to unify entity tagging
Allow multiple maps, times, and weathers per habitat appearance
Make item usage optional and translate API error messages to Chinese
Add .dockerignore files for backend and frontend

backend/src/server.ts

@@ -35,6 +35,7 @@ const app = Fastify({
 });
 
 await app.register(cors, {
+  methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
   origin: process.env.FRONTEND_ORIGIN ?? true
 });
 
@@ -42,15 +43,15 @@ app.setErrorHandler(async (error, _request, reply) => {
   const pgError = error as Error & { code?: string; constraint?: string; detail?: string; statusCode?: number };
 
   if (pgError.code === '23503') {
-    return reply.code(409).send({ message: 'Referenced data is missing or this item is in use' });
+    return reply.code(409).send({ message: '引用的数据不存在，或当前记录正在被使用' });
   }
 
   if (pgError.code === '23505') {
-    return reply.code(409).send({ message: 'A record with the same value already exists' });
+    return reply.code(409).send({ message: '同名或相同 ID 的记录已存在' });
   }
 
   if (pgError.code === '23514') {
-    return reply.code(400).send({ message: 'Invalid field value' });
+    return reply.code(400).send({ message: '字段值不合法' });
   }
 
   if (pgError.statusCode && pgError.statusCode < 500) {
@@ -58,7 +59,7 @@ app.setErrorHandler(async (error, _request, reply) => {
   }
 
   app.log.error(error);
-  return reply.code(500).send({ message: 'Server error' });
+  return reply.code(500).send({ message: '服务器错误' });
 });
 
 app.get('/health', async () => ({ ok: true }));