fix(desktop): accept ACP config option name labels - #6545

Summary

• Accept the ACP-standard name field for config-option and select-value labels.
• Preserve the existing displayName field as the first choice for backward compatibility.
• Apply the same fallback when normalizing model options for the Desktop model picker.

ACP v1 defines name as the required human-readable label for both ConfigOption and ConfigOptionValue: https://github.com/agentclientprotocol/agent-client-protocol/blob/main/docs/protocol/v1/session-config-options.mdx

Buzz previously read only the non-standard displayName field. Agents that follow the spec, including Cursor ACP, therefore exposed raw values such as default[] instead of their advertised label (Auto).

Related issue

N/A — no matching open issue or PR found.

Testing

• just desktop-tauri-test
• just desktop-tauri-clippy
• just desktop-tauri-fmt-check
• cargo test --manifest-path desktop/src-tauri/Cargo.toml config_options_accept_acp_name_labels --lib
• cargo test --manifest-path desktop/src-tauri/Cargo.toml agent_model_normalization_accepts_acp_name_field --lib
• git diff --check

Before / after

Before	After
Cursor's advertised default[] value is shown raw.	The same value uses its ACP name, Auto.