The pattern string to convert
A RegExp object
// Regex pattern (starts with /)
parsePattern("/spCreate.*Run/i") // Returns: /spCreate.*Run/i
// Simple wildcard patterns
parsePattern("*AIPrompt*") // Returns: /AIPrompt/i
parsePattern("spCreate*") // Returns: /^spCreate/i
parsePattern("*Run") // Returns: /Run$/i
parsePattern("exact") // Returns: /^exact$/i
Converts a string pattern to a RegExp object. Supports both regex strings and simple wildcard patterns.