fix(drizzle-zod): fix coerce schema input types and inverted integer condition for Zod 4

[DORI2001]

Problem

Closes #5659

When using createSchemaFactory({ coerce: true }) or createInsertSchema with coerce options in Zod 4, the TypeScript input types for coerced fields are unknown instead of the expected primitive types.

In Zod 4, z.coerce.boolean() and friends default their generic T to unknown, so z.input<typeof insertSchema> returns unknown for every coerced field.

There's also an inverted condition in numberColumnToSchema: .int() was being applied to non-integer columns and skipped for integer ones.

Fix

1. Pass explicit generics to all z.coerce.*() calls so the input type is preserved:
   z.coerce.boolean<boolean>(), z.coerce.date<Date>(), z.coerce.number<number>(), z.coerce.bigint<bigint>(), z.coerce.string<string>()

2. Fix the inverted integer condition in numberColumnToSchema:

   // before
   integer ? z.coerce.number() : z.coerce.number().int()
   // after
   integer ? z.coerce.number<number>().int() : z.coerce.number<number>()

3. Update tests to assert correct input types on both createSelectSchema and createInsertSchema with coerce enabled.

[shashwatpurplesectors]

this change is not not enough you will have to change the return types in column.type.ts as well.

[DORI2001]

Good catch — pushed an update that also adds the explicit generics to the type definitions in column.types.ts.

[shashwatpurplesectors]

cool. this should work now. hope it merges soon.

[DORI2001]

@Sukairo-02 — gentle ping on this one! All CI checks are passing and a community member confirmed the fix looks correct. Happy to make any adjustments if needed.