Alchemy v2 sharpens TypeScript infra for Effect teams

This reads like a meaningful developer-experience update rather than a cosmetic version bump, because the v2 docs reposition Alchemy around Effect-native orchestration and cleaner resource wiring.

• –v2 shifts infrastructure definition to `Alchemy.Stack` plus `Effect.gen`, which is a real workflow change for builders.
• –The platform emphasizes type-safe IAM, bindings, previews, and test stacks, which are the parts infra tools usually get wrong.
• –The tweet itself is only hype, so the signal is the underlying docs, not the post text.
• –Strong fit for teams already using TypeScript and Effect; less relevant if they want a simpler non-Effect IaC flow.