Function umbGetFirstJsonPathBracket

umbGetFirstJsonPathBracket(path: string): string | undefined
Extracts the contents of the first pair of square brackets in a JSON-Path string — the query of the outermost/first array-item scope, ignoring anything nested deeper in the path.
Parameters
- path: string
  The JSON-Path string.
Returns string | undefined
The bracket contents, or undefined if the path has no brackets.
Example
```
umbGetFirstJsonPathBracket("$.values[?(@.alias == 'x')].value.contentData[?(@.key == 'y')]");
// => "?(@.alias == 'x')"
```
- Defined in src/packages/core/validation/utils/first-json-path-bracket.function.ts:12