main:采用异步 Redis 客户端优化指标管理模块

变更内容：
- 将 `redis` 客户端替换为 `redis.asyncio` 实现。
- 系统中同步方法调整为异步方法，提升事件循环效率。
- 在 `MetricsManager` 中添加异步初始化及关闭逻辑，避免阻塞问题。
- 更新便捷函数以支持异步上下文，并添加同步模式的兼容方法。
- 调整 Worker、JobManager、API 路由等模块，适配异步指标操作。
- 扩展单元测试，覆盖新增的异步方法及 Redis 操作逻辑。
- 简化 Dockerfile，取消开发依赖安装命令。

src/functional_scaffold/core/job_manager.py

@@ -168,7 +168,7 @@ return 0
         await self._redis_client.hset(key, mapping=job_data)
 
         # 记录指标
-        incr("jobs_created_total", {"algorithm": algorithm})
+        await incr("jobs_created_total", {"algorithm": algorithm})
 
         logger.info(f"任务已创建: job_id={job_id}, algorithm={algorithm}")
         return job_id
@@ -320,8 +320,10 @@ return 0
             await self._redis_client.expire(key, settings.job_result_ttl)
 
             # 记录指标
-            incr("jobs_completed_total", {"algorithm": algorithm_name, "status": status})
-            observe("job_execution_duration_seconds", {"algorithm": algorithm_name}, elapsed_time)
+            await incr("jobs_completed_total", {"algorithm": algorithm_name, "status": status})
+            await observe(
+                "job_execution_duration_seconds", {"algorithm": algorithm_name}, elapsed_time
+            )
 
             logger.info(
                 f"任务执行完成: job_id={job_id}, status={status}, elapsed={elapsed_time:.3f}s"
@@ -372,7 +374,7 @@ return 0
                 )
 
                 if response.status_code < 400:
-                    incr("webhook_deliveries_total", {"status": "success"})
+                    await incr("webhook_deliveries_total", {"status": "success"})
                     logger.info(
                         f"Webhook 发送成功: job_id={job_id}, url={webhook_url}, "
                         f"status_code={response.status_code}"
@@ -395,7 +397,7 @@ return 0
                 await asyncio.sleep(delay)
 
         # 所有重试都失败
-        incr("webhook_deliveries_total", {"status": "failed"})
+        await incr("webhook_deliveries_total", {"status": "failed"})
         logger.error(f"Webhook 发送最终失败: job_id={job_id}, url={webhook_url}")
 
     def is_available(self) -> bool:
@@ -814,10 +816,10 @@ return 0
             # 更新指标
             from .metrics_unified import set as metrics_set
 
-            metrics_set("job_queue_length", {"queue": "pending"}, queue_length)
-            metrics_set("job_queue_length", {"queue": "processing"}, processing_length)
-            metrics_set("job_queue_length", {"queue": "dlq"}, dlq_length)
-            metrics_set("job_oldest_waiting_seconds", None, oldest_waiting_seconds)
+            await metrics_set("job_queue_length", {"queue": "pending"}, queue_length)
+            await metrics_set("job_queue_length", {"queue": "processing"}, processing_length)
+            await metrics_set("job_queue_length", {"queue": "dlq"}, dlq_length)
+            await metrics_set("job_oldest_waiting_seconds", None, oldest_waiting_seconds)
 
             return {
                 "queue_length": queue_length,