R23-1/R23-2/R23-4：完成项目沟通回填与收口治理后端

server/src/config.js

@@ -126,6 +126,8 @@ function getConfig() {
     wecomEntryEnabled: process.env.WECOM_ENTRY_ENABLED === "true",
     projectDomainEnabled: process.env.PROJECT_DOMAIN_ENABLED === "true",
     projectLinkingEnabled: process.env.PROJECT_LINKING_ENABLED === "true",
+    projectCommunicationLogEnabled: process.env.PROJECT_COMMUNICATION_LOG_ENABLED === "true",
+    projectClosureChecklistEnabled: process.env.PROJECT_CLOSURE_CHECKLIST_ENABLED === "true",
     confidentialDocRefsEnabled: process.env.CONFIDENTIAL_DOC_REFS_ENABLED === "true",
     publicSecurityHardeningEnabled: process.env.PUBLIC_SECURITY_HARDENING_ENABLED === "true",