feat(tui): allow variant_list keybind for the "Switch model variant" command (#21185)

Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>

packages/opencode/src/cli/cmd/tui/app.tsx

@@ -599,6 +599,7 @@ function App(props: { onSnapshot?: () => Promise<string[]> }) {
     {
       title: "Switch model variant",
       value: "variant.list",
+      keybind: "variant_list",
       category: "Agent",
       hidden: local.model.variant.list().length === 0,
       slash: {

packages/opencode/src/config/config.ts

@@ -669,6 +669,7 @@ export namespace Config {
       agent_cycle: z.string().optional().default("tab").describe("Next agent"),
       agent_cycle_reverse: z.string().optional().default("shift+tab").describe("Previous agent"),
       variant_cycle: z.string().optional().default("ctrl+t").describe("Cycle model variants"),
+      variant_list: z.string().optional().default("none").describe("List model variants"),
       input_clear: z.string().optional().default("ctrl+c").describe("Clear input field"),
       input_paste: z.string().optional().default("ctrl+v").describe("Paste from clipboard"),
       input_submit: z.string().optional().default("return").describe("Submit input"),