Support oEmbed with Lookup Result Card as Rich HTML

[tsmarvin]

Summary
Add support for oEmbed in TuneBridge to expose lookup result information as embedded cards using the rich HTML option. Consider utilizing the existing embed functionality to streamline the integration.

Details

• Implement an oEmbed endpoint that returns the lookup result formatted cards when requested.
• Use the type: rich HTML oEmbed response to provide a visually attractive, interactive embed for consumers.
• Leverage or extend current embed code to power the HTML response for oEmbed.

Benefits

• Makes TuneBridge lookup results easily shareable and embeddable across other platforms, blogs, or documentation.
• Follows a common integration pattern for modern content and result sharing workflows.

References

• oEmbed specification

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If more details (design or API strategy) are needed, provide context in comments or as a follow-up task.