Default Gemini adapter to yolo mode and add API access prompt note

Gemini CLI only registers run_shell_command in --approval-mode yolo.
Non-yolo modes don't expose it at all, making Paperclip API calls
impossible. Always pass --approval-mode yolo and remove the now-unused
policy engine code, approval mode config, and UI toggles.

Add a "Paperclip API access note" to the prompt with curl examples
via run_shell_command, since the universal SKILL.md is tool-agnostic.

Also extract structured question events from Gemini assistant messages
to support interactive approval flows.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/adapter-utils/src/types.ts

@@ -75,6 +75,14 @@ export interface AdapterExecutionResult {
   runtimeServices?: AdapterRuntimeServiceReport[];
   summary?: string | null;
   clearSession?: boolean;
+  question?: {
+    prompt: string;
+    choices: Array<{
+      key: string;
+      label: string;
+      description?: string;
+    }>;
+  } | null;
 }
 
 export interface AdapterSessionCodec {