Turbopack gets experimental React compiler support

Core Changes

• chore: upgrade next-rspack to rspack 2.0: #92222

Misc Changes

• docs: Route Handlers to be supported later on: #94705
• [ci] Allow "rerun failed jobs" to work up until 5 days for e2e deploy tests: #94812
• Fix stale next data API test URL: #94815
• Format submillisecond durations as milliseconds: #94813
• Instruct agents to keep and commit the generated agent-rules block: #94725
• [agents-md] Index bundled docs instead of downloading into .next-docs: #94719
• docs: add prefetchInlining config reference: #94650
• Move warnOnce imports into statements guarded by process.env.NODE_ENV === 'development': #94781
• Expand signature rewriting to allow returning ResolvedVc from turbo task functions: #94772
• Move errorOnce imports into statements guarded by process.env.NODE_ENV === 'development': #94782
• Add a message to AGENTS.md about super:: imports.: #94733
• Turbopack: add experimental React compiler support: #94573

Credits

Huge thanks to @icyJoseph, @eps1lon, @devjiwonchoi, @timneutkens, @gaojude, @ifer47, @sampoder, @lukesandberg, @wbinnssmith, and @SyMind for helping!