feat: complete contract-driven business development and MySQL integration

examples/managedService/internal/handler/appGen.go

@@ -4,6 +4,7 @@ package handler
 import (
 	"fmt"
 	omni "git.yuntuo.hk/k2safe/go-omni"
+	"git.yuntuo.hk/k2safe/go-omni/contract"
 
 	"example.com/managed/internal/svc"
 	"git.yuntuo.hk/k2safe/go-omni/config"
@@ -16,11 +17,13 @@ func NewApp(deps *svc.ServiceContext) (*omni.App, error) {
 		return nil, fmt.Errorf("service context and lifecycle controller required; see PROJECT.md upgrade instructions")
 	}
 	cfg := deps.Config.Server
+	cfg.LogInstance = deps.Logger
 	for _, option := range deps.AppOptions() {
 		if option != nil {
 			option(&cfg)
 		}
 	}
+	cfg.Request = contract.MergePolicy(cfg.Request, contract.RequestPolicy{UnknownQuery: "", UTF8: "", Charset: "", Body: ""})
 	cfg.Response = newResponseTemplate("{\"body\":null,\"errorBody\":null,\"messageField\":\"msg\",\"requestIdField\":\"-\",\"codeType\":\"int32\",\"successCode\":0,\"errorCode\":9999,\"dataMode\":\"always\"}").Config()
 	cfg.ResponseEncoder = nil
 	if err := cfg.Validate(); err != nil {