Restore source files from Google Drive backup

orchestration/run_nightly.py

@@ -102,6 +102,10 @@ def main(compressed: bool = False) -> int:
         if not server.server_up():  # recover if a prior agent left oMLX unresponsive
             logger.warning("oMLX unreachable before {}; recovering...", persona.id)
             server.ensure_ready(warm=False)
+        # Fresh KV store per agent: the previous persona's SSD/hot cache blocks share no
+        # prefix with this one, so they'd only pile up on the SSD (and pin RAM) until the
+        # disk fills or the prefill memory guard trips. Clear at the boundary, not mid-agent.
+        server.clear_kv_cache()
         lessons = lessons_for(persona.id)  # self-learning: past picks marked to market
         records[persona.id] = lessons
         blurb = "\n\n".join(x for x in (regime, lessons) if x)