Joakim e639c5e807 Implement client-side validation and sanitization ...

Add UX-focused validation to prevent user accidents and provide immediate feedback. Includes DOMPurify integration for basic content sanitization and real-time form validation.

Features:
- Real-time input validation with visual feedback
- Field-type specific validation (text, URL, markdown)
- DOMPurify integration for display sanitization
- Validation messages with auto-dismiss
- Prevents common user mistakes (HTML in text fields, invalid URLs)
- Client-side sanitization for markdown rendering
- Maintains security awareness while focusing on user experience

Note: This is UX-focused validation - server-side validation remains the primary security boundary.

2025-09-01 13:33:16 +02:00

6.2 KiB

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