main:添加核心文件并初始化项目

新增内容：
- 创建基础项目结构。
- 添加 `.gitignore` 和 `.dockerignore` 文件。
- 编写 `pyproject.toml` 和依赖文件。
- 添加算法模块及示例算法。
- 实现核心功能模块（日志、错误处理、指标）。
- 添加开发和运行所需的相关脚本文件及文档。

deployment/serverless/aliyun-fc.yaml

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+# 阿里云函数计算配置
+ROSTemplateFormatVersion: '2015-09-01'
+Transform: 'Aliyun::Serverless-2018-04-03'
+Resources:
+  functional-scaffold:
+    Type: 'Aliyun::Serverless::Service'
+    Properties:
+      Description: '算法工程化 Serverless 脚手架'
+      LogConfig:
+        Project: functional-scaffold-logs
+        Logstore: function-logs
+      VpcConfig:
+        VpcId: 'vpc-xxxxx'
+        VSwitchIds:
+          - 'vsw-xxxxx'
+        SecurityGroupId: 'sg-xxxxx'
+    prime-checker:
+      Type: 'Aliyun::Serverless::Function'
+      Properties:
+        Description: '质数判断算法服务'
+        Runtime: custom-container
+        MemorySize: 512
+        Timeout: 60
+        InstanceConcurrency: 10
+        CAPort: 8000
+        CustomContainerConfig:
+          Image: 'registry.cn-hangzhou.aliyuncs.com/your-namespace/functional-scaffold:latest'
+          Command: '["uvicorn", "src.functional_scaffold.main:app", "--host", "0.0.0.0", "--port", "8000"]'
+        EnvironmentVariables:
+          APP_ENV: production
+          LOG_LEVEL: INFO
+          METRICS_ENABLED: 'true'
+      Events:
+        httpTrigger:
+          Type: HTTP
+          Properties:
+            AuthType: ANONYMOUS
+            Methods:
+              - GET
+              - POST

deployment/serverless/aws-lambda.yaml

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+# AWS Lambda 配置（使用 Lambda Container Image）
+AWSTemplateFormatVersion: '2010-09-09'
+Transform: AWS::Serverless-2016-10-31
+Description: FunctionalScaffold Serverless Application
+
+Globals:
+  Function:
+    Timeout: 60
+    MemorySize: 512
+    Environment:
+      Variables:
+        APP_ENV: production
+        LOG_LEVEL: INFO
+        METRICS_ENABLED: 'true'
+
+Resources:
+  FunctionalScaffoldFunction:
+    Type: AWS::Serverless::Function
+    Properties:
+      PackageType: Image
+      ImageUri: !Sub '${AWS::AccountId}.dkr.ecr.${AWS::Region}.amazonaws.com/functional-scaffold:latest'
+      Events:
+        ApiEvent:
+          Type: Api
+          Properties:
+            Path: /{proxy+}
+            Method: ANY
+      Policies:
+        - AWSLambdaBasicExecutionRole
+
+  FunctionalScaffoldApi:
+    Type: AWS::Serverless::Api
+    Properties:
+      StageName: prod
+      Cors:
+        AllowMethods: "'*'"
+        AllowHeaders: "'*'"
+        AllowOrigin: "'*'"
+
+Outputs:
+  ApiUrl:
+    Description: "API Gateway endpoint URL"
+    Value: !Sub "https://${FunctionalScaffoldApi}.execute-api.${AWS::Region}.amazonaws.com/prod/"
+  FunctionArn:
+    Description: "Function ARN"
+    Value: !GetAtt FunctionalScaffoldFunction.Arn