v1.9.7: ask_user_input elicitation tool

apps/server/src/services/agents.ts

@@ -15,9 +15,12 @@ const CACHE_TTL_MS = 60_000;
 // explicit `tools:` field inherit the full default set (which now includes
 // the skill tools); agents with an explicit `tools:` array must list any
 // skill tool they want to use — strict opt-in.
+// Batch 9.7: ask_user_input added — same opt-in semantics. Agents with an
+// explicit tools list that omits it cannot trigger the interactive picker.
 const ALL_TOOL_NAMES = [
   'view_file', 'list_dir', 'grep', 'find_files', 'git_status',
   'skill_find', 'skill_use', 'skill_resource',
+  'ask_user_input',
 ] as const;
 const DEFAULT_TOOLS: string[] = [...ALL_TOOL_NAMES];
 const DEFAULT_TEMPERATURE = 0.7;