feat: streamx integration tests

[jayantxie]

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feat

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[github-actions]

license-eye has totally checked 167 files.

Valid	Invalid	Ignored	Fixed
115	3	49	0

Click to see the invalid file list

• streamx/proto/proto_test.go
• streamx/thrift/thrift_test.go
• streamx/idl/echo.thrift

[github-actions]

license-eye has totally checked 168 files.

Valid	Invalid	Ignored	Fixed
117	2	49	0

Click to see the invalid file list

• streamx/tracer.go
• streamx/idl/echo.thrift

[github-actions]

Suggested change

	package streamx
	// Copyright 2025 CloudWeGo Authors
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.
	package streamx