v1.2.0

• Added: #[Generate] — a parameter attribute holding its generator, read by
  Gen::forParameters() and Gen::forClass() after an override and before the
  docblock and the native type (#160). It takes an arbitrary built with new, or
  a reference to a static factory returning one ('method', 'Class::method',
  [Class::class, 'method'], an invokable) — the reference is how a generator
  built with a closure (map, email, regex) reaches a parameter on PHP 8.3
  and 8.4. A broken attribute is an exception naming the parameter.
• Added: Gen::forParameters(derive: false) reads only overrides and
  #[Generate] and refuses a parameter with neither — the engine half of an
  adapter's mode without auto.
• Added: the docblock reader understands numeric-string,
  non-falsy-string/truthy-string, lowercase-string,
  non-empty-lowercase-string and array shapes — array{a: T, b?: U},
  quoted and integer keys, positional array{T, U} and list{T, U}, array{},
  shapes nested in collections and unions (#156). An optional key is sometimes
  absent and shrinks towards absent. Unsealed shapes and double-quoted keys stay
  refused. A @param type written across several lines is now read.
• Changed: refusals about a parameter now end with
  pass an override or #[Generate].