Set story title character limit to 60 characters

[realproject7]

Summary

Set a maximum character limit of 60 characters for story titles.

Implementation

• Add validation in the create storyline form (frontend)
• Show character counter (e.g. "42/60")
• Prevent submission if over 60 chars
• Check if contract-level validation exists or if this is frontend-only

Acceptance Criteria

• Title input enforces 60 character max
• Character counter displayed
• Cannot submit with >60 characters