Follow-up #48: Do we _want_ to fail silently, here?

[galatanovidiu]

Do we want to fail silently, here?

Originally posted by @JasonTheAdams in #48 (comment)

[galatanovidiu]

McpResource::to_json() no longer exists. The domain models were rewritten to use php-mcp-schema DTOs in v0.5.0 (PR #122), so serialization is handled by the DTO layer now. Closing as stale.