fix: remove hint text from task_type schema field

Bouncer does exact match on task_type — parenthetical hint leaked into LLM output.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

templates/InputFromUser.yml

@@ -62,7 +62,7 @@ steps:
           description: "string — the operator's full message verbatim, plus project context (create_task only)"
           agents:
             - "Edgar"
-          task_type: "planning (always for create_task)"
+          task_type: "planning"
           note: "string — insight to store (save_nugget only)"
           subject: "string — what to look up (status_query only)"
           user_name: "string — sender name (status_query briefing only)"