Update from task 54602e2d-a27a-4e63-88d7-e8c37dfd6b5f

.gitignore

@@ -1,73 +1,25 @@
 ```
 # Dependencies
 node_modules/
+.pnpm-store/
 
-# Build artifacts
-dist/
-build/
-target/
-
-# Turbo build cache
-.turbo/
-
-# Python cache
-__pycache__/
-*.pyc
-*.pyo
-*.pyd
+# Logs and temp files
+*.log
+*.tmp
 
-# Environment files
+# Environment
 .env
 .env.local
-.env.*
+*.env.*
 
-# IDE files
+# Editor/IDE
 .vscode/
 .idea/
 *.swp
 *.swo
 
-# Logs
-*.log
-
-# Temp files
-*.tmp
-
-# Coverage
-coverage/
-htmlcov/
-.coverage
-
-# MyPy
-.mypy_cache/
-
-# Pytest
-.pytest_cache/
-
-# Gradle
-.gradle/
-
-# Compressed files
-*.zip
-*.gz
-*.tar
-*.tgz
-*.bz2
-*.xz
-*.7z
-*.rar
-*.zst
-*.lz4
-*.lzh
-*.cab
-*.arj
-*.rpm
-*.deb
-*.Z
-*.lz
-*.lzo
-*.tar.gz
-*.tar.bz2
-*.tar.xz
-*.tar.zst
+# Build outputs
+dist/
+build/
+target/
 ```

apps/@aether/converge-server/src/index.ts

@@ -10,6 +10,7 @@
 //   PORT              - 监听端口（默认 1234）
 //   DATABASE_URL      - Postgres 连接 URL（必需）
 //   REDIS_URL         - Redis 连接 URL（可选，多实例广播）
+import type { Extension } from '@hocuspocus/server'
 import { Hocuspocus } from '@hocuspocus/server'
 import { getDb } from './db.js'
 import { AetherDatabaseExtension } from './extensions/database.js'
@@ -18,15 +19,17 @@ const PORT = parseInt(process.env.PORT ?? '1234', 10)
 const REDIS_URL = process.env.REDIS_URL
 async function main() {
   const db = getDb()
-  const extensions = []
+  const extensions: Extension[] = []
   // Database extension: 接入 @aether/db crdt_updates 表
   extensions.push(new AetherDatabaseExtension({ db }))
   // Redis extension: 多实例广播 seam（可选）
   // P2-15 修复：配置了 REDIS_URL 但依赖缺失时 createRedisExtension 会 throw，
   // 由 main().catch() 捕获并退出，避免静默降级为单实例模式。
   if (REDIS_URL) {
     const redisExt = await createRedisExtension({ redisUrl: REDIS_URL })
-    extensions.push(redisExt)
+    if (redisExt) {
+      extensions.push(redisExt)
+    }
     // eslint-disable-next-line no-console
     console.log('[converge-server] Redis extension enabled for multi-instance broadcast.')
   }