v15.6.0-canary.31

Core Changes

• Feat: get_page_metadata MCP endpoint: #84211
• feat: capture logs into logging file during development: #84183
• babel-loader: Avoid calling expensive isReactCompilerRequired check when we must run Babel anyways: #84103
• [mcp] expose logging: #84226

Misc Changes

• Turbopack: trace fs-extra calls: #84246
• [test] Overhaul Undefined default export test suite: #84235

Credits

Huge thanks to @mischnic, @gaojude, @huozhi, @unstubbable, and @bgw for helping!