OpenCode: add Kimi K3 to model selector

[tomas-oa]

What are you proposing?

Adding kimi-k3 to the opencode model selector

Why does this matter?

enum currently tops out at kimi-k2.7-code

Are there any examples or context?

• OpenCode Go: add GLM-5.2 and Kimi K2.7 to model list #59592
• opencode go Kimi 2.7 and GLM 5.2 missing #59225

Possible approach

• Add a kimi-k3 to the enum in crates/opencode/src/opencode.rs
• Longer-term, a discovery mechanism that reads the opencode CLI's model list.

opencode model specifications

Note

I tried bypassing the enum by adding go/kimi-k3 to favorite_models and available_models in settings.json but didn't work 😿