Feature Request

iMessage channel should support sending rich text formatting and effects (bold, italics, underline, strikethrough, text size, and animations like Shake/Nod/Explode/Ripple/Bloom/Jitter).

Current Behavior
The imsg CLI tool only supports plain text. Messages sent through the OpenClaw iMessage channel cannot include:

• Bold, italic, underline, strikethrough
• Text size variations (BIG, small)
• Screen effects (Shake, Nod, Explode, Ripple, Bloom, Jitter)

Proposed Solution
Options:

1. Update imsg CLI to accept formatting/effect flags that map to Messages.app's markup
2. Update OpenClaw iMessage channel plugin to support sending rich text attributes
3. Investigate how Messages.app stores these effects (they're in the database but not exposed by imsg CLI)

Impact
Would allow AI assistants to take advantage of iMessage's full messaging capabilities, making conversations more engaging and readable.

Testing Data
Effects can be triggered in Messages.app UI (long-press text, select iMessage effects, or use keyboard shortcuts). The database stores these separately from message text.