Turbopack tree-shaking refined; prefetch loops fixed

Misc Changes

• [turbopack] Bail CJS tree-shaking on var x = module.exports = {}: #97130
• docs: server client and directives: #96145
• docs: clarify client cache freshness after hydration: #97180
• Fix: Optimistic routing bugs leading to repeated prefetch loops: #97128
• docs: create client-side fetching guide: #96341
• Turbopack: accept a module type argument for import.meta.glob: #96991
• docs: align Cache Components authentication guide title: #97143
• test: re-enable a few more passing NFT unit cases: #97017
• [turbopack] Do the CJS analysis needed for scope hoisting: #95826
• Remove legacy PPR code paths: #96868
• Use Cache Components as the internal PPR signal: #96827
• Make legacy PPR paths explicit: #96753
• fix: typos in code comments: #97137
• Fix spelling in two comments: #97136

Credits

Huge thanks to @sampoder, @icyJoseph, @aurorascharff, @acdlite, @kelvinampofo, @mischnic, @ztanner, and @marcoshernanz for helping!