[alexgrozav]

What changed

The analyser reads a .uf.ts module of composables (ADR-0069).

• The entry. analyze() takes a .uf.ts module as well as a .uf.tsx one. A .uf.ts module holds no component. Each named export use[A-Z]…, a function declaration, is a composable, lowered into UfModule.composables.
• The body. It is declared and lowered by the component setup's own pass (declareSetup), with its parameters in place of props and a returned shorthand object in place of JSX. A component's rules apply to it as they do to a setup.
• Parameters. Each is a name with a type, read through an argument binding as a destructured prop is read. Its type, written in place, gives its kind: a function type without parameters is a getter, any other function type a callback, and anything else a value. A function type through an alias or a union is UF2035, and a name a target reserves is UF2003. Watching a getter by name is UF2020, with a safe fix to () => value().
• The API. The module's API lists a ComposableApi per composable: each parameter's kind and type, each member's kind and its type where the source writes one, whether a returned function is async, and pure or client by its summary (a function that calls a callback is client code, and UF2014 where a getter or an initial value calls it), and hasEffects where the setup holds a watcher or a lifecycle hook.
• UF2035. Each form ADR-0069 rejects is reported at its span, once, with a test each:
  • a call of useId, useTemplateRef, provide, inject or a define* macro;
  • a call of another composable, imported from a .uf.ts or declared in the module;
  • a default export, declared or listed;
  • a return of any other shape: no return, a ref, an array, a member that is not a shorthand property, or a name that is not the setup's own.
  • It also covers a member returned twice, a this parameter, a value import of a .uf.ts module that no composable calls, a parameter without a type, with a default or written as a pattern, a callback read outside client code, a use* function the module keeps or writes as a value, an export named otherwise, an async composable, and a module that exports no composable.
• Type specifiers of a .uf.ts import, inline or whole, are re-imported (typeImports).
• An injection key in a .uf.ts module is UF1002: it stays in the .uf.tsx module that provides it (ADR-0054).

The call site and compile()'s handling of a .uf.ts source come in a later change. Framework output: no output changes on any target, and no corpus case changes.

Checklist

• The title follows Conventional Commits, as in feat(web): sell the next framework on the homepage.
• pnpm format:check, pnpm lint, pnpm check-types and pnpm test pass. The first three pass. The analyser's, the compiler's and the repo tests pass, and so does the full integration suite on all seven targets, with the parity matrix green. The root pnpm test was not run as one command.
• Changes to a published package: a changeset from pnpm changeset (see .changeset/README.md). Not needed: every package is private.
• Homepage changes: pnpm build, then pnpm --filter web lighthouse, still scores at least 0.95 in every category. Not needed: no homepage change.

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