Fix interactive mode errors

[farrelmahaztra]

• Fixes not serializable as JSON error when displaying ImageContent
• Fixes computer click tool and others failing when input type is not a string

---

Note

Improve interactive tool arg parsing for anyOf/oneOf types and add safe, informative rendering for ImageContent results.

• CLI interactive tester (hud/cli/utils/interactive.py):
  • Tool arg parsing: Detect prop_schema type from anyOf/oneOf (excluding null), falling back to string when absent.
  • Result rendering: Add handling for ImageContent to display mime type and base64 size in a panel (avoids JSON serialization issues).
  • Imports: Include ImageContent to support new rendering.

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