MCP compile_route tool shipped; cross-param prefetch leak fixed

Core Changes

• Add nextConfig.instrumentationClientInject: #93785
• Add MCP compile_route tool: #93337
• [turbopack-trace-server] Add memory samples to the mcp tool results: #93338

Misc Changes

• docs: update agent test guidance: #93924
• Add create PR skill: #93937
• Use node streams for server inserted HTML: #93934
• Remove vercel approvers: #93921
• [otel] honor traceparent for verbose mode spans: #93874
• Fix cross-param leak with prefetch={true} and cachedNavigations: #93940
• Enable rootParams by default: #93863
• devlow: add run sampling snapshots and comparison reports: #93833
• Allow inspecting prerender worker again: #93947
• make rcstrs on the heap/static slightly smaller: #93805
• Stop pinning compiled chunk source on EcmascriptBuildNodeChunkVersion. : #93807
• [turbopack] Add trace metadata about the persist size: #93339

Credits

Huge thanks to @timneutkens, @mischnic, @gnoff, @kakadiadarpan, @unstubbable, @wbinnssmith, and @lukesandberg for helping!