Next.js v16.2.0-canary.65: Turbopack gets stricter v16.2.0-canary.65

Shipped some housekeeping in the canary: Turbopack now panics if top-level tasks try eventually consistent reads (catches bugs earlier, ngl), fixed middleware behaviour with adapters, and inlined source maps for eval'd modules so HMR doesn't lie to you. Shoutout to bgw, wbinnssmith, and ijjk for the assist.