Core Changes

• [AI] Ship bundled docs in next and generate AGENTS.md in create-next-app: #89850
• Turbopack: Implement server hmr in nodejs dev runtime: #89130

Misc Changes

• docs: adapt lead to source path patterns: #89392
• docs: Papercuts Feb26: #89484
• [test] Ensure new deploy test builds have the necessary env variables: #89846
• test: allow dpl query suffix in scss url-global expectation: #89856
• test: stabilize app-dir hash navigation RSC assertion: #89867
• Turbopack: Clean up unused register!() macro argument in test: #89869

Credits

Huge thanks to @icyJoseph, @eps1lon, @gaojude, @ijjk, @wbinnssmith, and @bgw for helping!