🧪 Add tests for Directive Tags Parsing

[mgabrielramos]

Added comprehensive tests for parseInlineDirectives in src/utils/directive-tags.ts covering:

• Empty/undefined inputs
• Audio tag parsing and stripping
• Reply tag parsing (current and explicit)
• Tag combination and precedence
• Whitespace normalization
• Edge cases

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PR created automatically by Jules for task 3641424475243497843 started by @mgabrielramos

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