Restrict @Dispatcher qualifier to constructor parameters

Description

This change would adds @Target(AnnotationTarget.VALUE_PARAMETER) to the @Dispatcher qualifier to explicitly limit its usage to constructor/function parameters.
This removes Kotlin’s use-site target warnings, improves clarity.
I believe Kotlin 2.2 uses param by default it makes it more predictable in Hilt.
(Alternatively, we can add @param e.g @param:Dispatcher(IO), but having @Target reduces boilerplate)

Any suggestion for writing a test for this?

```
@Target(AnnotationTarget.PROPERTY_SETTER)
@Qualifier
@Retention(RUNTIME)
annotation class Dispatcher(val niaDispatcher: NiaDispatchers)

enum class NiaDispatchers {
Default,
IO,
}
```

Locate the @Dispatcher annotation and inspect its current usages and compiler warnings. Check how Kotlin 2.2 resolves the qualifier target, then determine whether an existing test location can verify parameter-only usage and the absence of warnings. Done means the target is restricted as described and the relevant behavior is covered.

Written by the indexing model from the issue text.