Fix: array input parsing

[shoummu1]

📌 Summary
This PR updates the admin UI’s input parser logic to support array schemas defined using anyOf (e.g., lists of int or float). Previously, primitive array values submitted via the UI failed validation with errors like:
Input validation error: '3' is not valid under any of the given schemas

✅ Changes Made

1. Replaced strict prop.items.type check with anyOf-aware logic
2. Parsed array values based on schema-supported types (number, Boolean, object)
3. Added type-safe conversion with fallback for raw values
4. Improved error handling and messaging for invalid formats

🧪 Test Plan

1. Tested with create-line-chart tool using numeric arrays (x and y)
2. Validated full submission without manual array manipulation

🔗 Related Issues
Closes #620

[madhav165]

Working as expected. Merging since test, doctest and smoketest also passed.