style:优化代码格式，提高可读性

src/config/env.js

@@ -4,7 +4,7 @@ const config = {
     app: {
         port: process.env.PORT || 3000,
         dbPath: process.env.DB_FILE_PATH || './sync.sqlite',
-        rate : process.env.RATE_LIMIT_WINDOW || 10000,
+        rate: process.env.RATE_LIMIT_WINDOW || 10000,
         maxRequests: process.env.MAX_REQUESTS_PER_WINDOW || 20,
         debugMode: process.env.DEBUG_MODE === 'true',
         logRetentionDays: process.env.LOG_RETENTION_DAYS || 30

src/config/mappings.js

@@ -1,7 +1,7 @@
 const fs = require('fs');
 const path = require('path');
 
-// 读取配置文件路径
+//读取配置文件路径
 const configPath = path.join(__dirname, '../../mappings.json');
 
 let mappingsConfig = null;
@@ -14,14 +14,14 @@ function loadMappings() {
     if (mappingsConfig) {
         return mappingsConfig;
     }
-    
+
     try {
         const configContent = fs.readFileSync(configPath, 'utf8');
         mappingsConfig = JSON.parse(configContent);
-        
-        // 处理环境变量替换
+
+        //处理环境变量替换
         processEnvVariables(mappingsConfig);
-        
+
         return mappingsConfig;
     } catch (error) {
         throw new Error(`无法加载映射配置文件 ${configPath}: ${error.message}`);
@@ -86,11 +86,11 @@ const defaultMappings = new Proxy({}, {
 function getRepoConfig(repoFullName) {
     const config = loadMappings();
     const repoConfig = config.repositories[repoFullName];
-    
+
     if (!repoConfig) {
         return null;
     }
-    
+
     return {
         jira: repoConfig.jira,
         priorities: repoConfig.priorities || config.defaultMappings.priorities,
@@ -117,7 +117,7 @@ function getConfiguredRepos() {
  */
 function getRepoByJiraProject(jiraProjectKey) {
     const config = loadMappings();
-    
+
     for (const [repoKey, repoConfig] of Object.entries(config.repositories)) {
         if (repoConfig.jira && repoConfig.jira.projectKey === jiraProjectKey) {
             return {