v15.0.0-canary.201

Core Changes

• Ensure custom cache handlers are traced: #71521
• Update React to bf7e210c: #71524
• Update React (again): #71528
• Remove double decoding of encrypted closures : #71527
• codemod: fix props types modify for type alias: #71537
• next-upgrade: Stop prompting for React 19 upgrade on pure App Router apps: #71486
• Ensure only one tags manifest is leveraged across handlers: #71522

Misc Changes

• test: de-flake rsc-cookies e2e tests: #71319
• docs: add TypeScript code blocks in ISR page: #71492

Credits

Huge thanks to @serhalp, @ijjk, @Juneezee, @sebmarkbage, @huozhi, and @eps1lon for helping!