v15.0.0-canary.109

Core Changes

• fix: HMR not works when assetPrefix set to URL: #68622
• Reject next image urls in image optimizer: #68628
• Check vendored @ampproject/toolbox-optimizer into version control: #68466
• Use proper react release channel for react-dom/static aliases: #68663
• Stop mangling server runtime in dev: #68641
• Ensure we hard error on invalid middleware config export: #68638
• Ensure we copy map file as well for experimental tracing: #68676
• chore: remove asset prefix warning log and update docs: #68681

Misc Changes

• feat(turbopack): Allow type-only import of usePathname: #68643
• Docs: Add static indicator diagram: #68659
• Docs: Add note about RC deps: #68591
• test: refactor unclear tests to composed matchers: #68674

Credits

Huge thanks to @devjiwonchoi, @kdy1, @huozhi, @eps1lon, @delbaoliveira, @unstubbable, @gnoff, and @ijjk for helping!