docs: fix Task 6 plan snippet: PRAGMA table_info name index is c[1] not c[0]

docs/plans/2026-04-26-v1-phase1-implementation.md

@@ -884,7 +884,7 @@ def get_bot(conn: Connection, bot_id: str) -> dict | None:
     row = conn.execute("SELECT * FROM bots WHERE id = ?", (bot_id,)).fetchone()
     if not row:
         return None
-    cols = [c[0] for c in conn.execute("PRAGMA table_info(bots)").fetchall()]
+    cols = [c[1] for c in conn.execute("PRAGMA table_info(bots)").fetchall()]
     d = dict(zip(cols, row))
     d["voice_samples"] = json.loads(d.pop("voice_samples_json"))
     d["traits"] = json.loads(d.pop("traits_json"))