feat: Add support for SOFARPC framework

[fangxiu-wf]

This PR adds instrumentation support for SOFARPC framework, including:

• Javaagent instrumentation module
• Library autoconfigure module
• Testing utilities and test cases
• Support for SOFARPC 5.4.0+

Fixes #15496

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Copilot / name: Copilot (2e3ea76, 2edfd9c)
• ✅ login: fangxiu-wf / name: fangxiu-wf (2e3ea76, 2edfd9c)
• ✅ login: fangxiu-wf / name: fangxiu.wf (0ca5e01, 4f13bcb, 6858a2f, 79ddb57, c65186c, e58a555)

[Copilot]

Pull request overview

This PR adds comprehensive instrumentation support for the SOFARPC framework, enabling distributed tracing for RPC calls. The implementation includes both javaagent-based auto-instrumentation and library-based manual instrumentation approaches, with full support for synchronous, asynchronous, and generic invocations.

Key changes:

• Adds javaagent instrumentation module with automatic filter injection via SPI
• Adds library autoconfigure module with manual instrumentation API
• Implements comprehensive test coverage including chain tracing, error handling, async calls, and local call detection
• Supports SOFARPC versions 5.4.0 through 5.12.0+

Reviewed changes

Copilot reviewed 36 out of 36 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
settings.gradle.kts	Adds three new subprojects for SOFARPC instrumentation (javaagent, library-autoconfigure, testing)
instrumentation/sofa-rpc/metadata.yaml	Defines instrumentation metadata including supported versions, semantic conventions, and configuration options
instrumentation/sofa-rpc/testing/build.gradle.kts	Configures test dependencies and runtime classpath with SOFARPC 5.4.0 and compatible logging dependencies
instrumentation/sofa-rpc/testing/src/main/java/.../api/*	Defines test service interfaces (HelloService, MiddleService, ErrorService) for testing RPC scenarios
instrumentation/sofa-rpc/testing/src/main/java/.../impl/*	Implements test services including error handling, chaining, and timeout scenarios
instrumentation/sofa-rpc/testing/src/main/java/.../AbstractSofaRpcTest.java	Provides base test class for synchronous, asynchronous, and error handling test scenarios
instrumentation/sofa-rpc/testing/src/main/java/.../AbstractSofaRpcTraceChainTest.java	Tests trace propagation through chained RPC calls and local call filtering
instrumentation/sofa-rpc/library-autoconfigure/src/main/java/.../*	Core library instrumentation including telemetry builder, filters, attribute extractors, and context propagation
instrumentation/sofa-rpc/library-autoconfigure/src/test/java/.../*	Library instrumentation tests extending abstract test classes
instrumentation/sofa-rpc/library-autoconfigure/build.gradle.kts	Configures library dependencies with SOFARPC 5.4.0 and AutoValue for code generation
instrumentation/sofa-rpc/library-autoconfigure/src/main/resources/META-INF/services/*	SPI configuration for auto-registering OpenTelemetry filters with SOFARPC
instrumentation/sofa-rpc/javaagent/src/main/java/.../*	Javaagent instrumentation module with resource injection and filter delegation
instrumentation/sofa-rpc/javaagent/src/testSofaRpc/java/.../*	Javaagent-specific tests with peer service attribute support
instrumentation/sofa-rpc/javaagent/build.gradle.kts	Configures javaagent build with muzzle checks for version 5.0.0+ and test suites
instrumentation/sofa-rpc/javaagent/src/main/resources/*	SPI configuration for javaagent filter registration