Components: Text inputs #10

REQUIREMENTS §22 (Text inputs), §13. Base: shadcn input, textarea, input-group, input-otp, popover, command.

• Text input (thaana prop)
• Email input
• Password input
• Sensitive input
• Copy input
• Number input
• Quantity stepper
• Number with unit add-on (UnitInput)
• Phone input (default MV)
• URL input
• Hidden input
• Textarea (thaana prop)
• Thaana input
• OTP input
• Slug generator (Thaana titles transliterated)
• Autocomplete (thaana prop)
• Colour picker
• Icon picker (Lucide + Iconify/FontAwesome sources)
• Signature pad (@javaabu/onu/media)
• Tags input (thaana prop)
• QR code scanner (@javaabu/onu/media)

Merged into claude/amazing-cerf-htnpm8. Coverage 99.7% lines / ~93% branches.

Follow-ups:

• Figma components + Code Connect (Figma kit & token sync #29)
• Phone country names in Dhivehi (browser has no dv region names)
• Signature exported in dark mode uses light ink unless penColor is set — consider a print default