chore: improve the enumeral

[apitamr]

Problem

When using Zed editor with Prisma files, enum values with @map annotations are not showing up in the outline/symbol tree. This makes it difficult to navigate to specific enum values, especially in large enums with descriptive mappings.

Example Issue

The following enum shows only the enum declaration (ExerciseType) in the outline, but individual enum values are not visible:

enum ExerciseType {
  TWELVE_MINUTE_RUN_METERS       @map("12 MINUTE RUN (METERS)")
  PULL_UP_ONE_MINUTE_REPS        @map("PULL-UP 1 MINUTE (REPS)")
  SIT_UP_ONE_MINUTE_REPS         @map("SIT-UP 1 MINUTE (REPS)")
  PUSH_UP_ONE_MINUTE_REPS        @map("PUSH-UP 1 MINUTE (REPS)")
  SHUTTLE_RUN_SIX_BY_TEN_SECONDS @map("SHUTTLE-RUN 6 X 10M (SECONDS)")
}

Solution

Replace the complex regex-based enumeral definition with:

enumeral: $ => seq($.identifier, optional(repeat($.attribute)))

Before

Screen.Recording.2025-09-28.at.20.15.28.mov

After

Screen.Recording.2025-09-28.at.20.18.12.mov

• Supports attributes on enum values** - Allows Prisma enum values to have attributes like @map("old_name")
• Reuses existing identifier rule** - More consistent with other parts of the grammar
• Better aligned with Prisma syntax** - Enum values in Prisma can indeed have attributes

[victorhqc]

Hey! Sorry, I missed this PR, let me take a look

[victorhqc]

Thank you!