tui: remove shell/normal mode toggle from prompt input

Users no longer need to manually switch between shell and normal modes as the agent now automatically determines the appropriate mode based on context.

packages/app/src/components/prompt-input.tsx

@@ -27,7 +27,6 @@ import { ProviderIcon } from "@opencode-ai/ui/provider-icon"
 import { Tooltip, TooltipKeybind } from "@opencode-ai/ui/tooltip"
 import { IconButton } from "@opencode-ai/ui/icon-button"
 import { Select } from "@opencode-ai/ui/select"
-import { RadioGroup } from "@opencode-ai/ui/radio-group"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { ModelSelectorPopover } from "@/components/dialog-select-model"
 import { DialogSelectModelUnpaid } from "@/components/dialog-select-model-unpaid"
@@ -1496,36 +1495,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
                 </TooltipKeybind>
               </div>
             </div>
-            <div class="shrink-0">
-              <RadioGroup
-                options={["shell", "normal"] as const}
-                current={store.mode}
-                value={(mode) => mode}
-                label={(mode) => (
-                  <TooltipKeybind
-                    placement="top"
-                    gutter={4}
-                    openDelay={2000}
-                    title={language.t(mode === "shell" ? "prompt.mode.shell" : "prompt.mode.normal")}
-                    keybind={command.keybind(mode === "shell" ? "prompt.mode.shell" : "prompt.mode.normal")}
-                    class="size-full flex items-center justify-center"
-                  >
-                    <Icon
-                      name={mode === "shell" ? "console" : "prompt"}
-                      class="size-[18px]"
-                      classList={{
-                        "text-icon-strong-base": store.mode === mode,
-                        "text-icon-weak": store.mode !== mode,
-                      }}
-                    />
-                  </TooltipKeybind>
-                )}
-                onSelect={(mode) => mode && setMode(mode)}
-                fill
-                pad="none"
-                class="w-[68px]"
-              />
-            </div>
           </div>
         </DockTray>
       </Show>