[FEATURE] Support .org export format

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

/export and claude export does not support Markdown output.

Proposed Solution

Please add support for Org mode format (e.g. claude export --format org or /export org).

Org mode is widely used among technical users (Emacs) - and beyond 🦄

Alternative Solutions

Currently a workaround is piping through pandoc, which is not ideal.

Priority

Low - Nice to have

Feature Category

Developer tools/SDK

Use Case Example

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Additional Context

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