feat: unified fleet CLI, Main Chat preservation policy, sidechat routing, and file transfers

- Added CHAT_POLICY.md and README.md banner enforcing sidechat-first and file-transfer-first rules.
- Added strict Main Chat block to super dm send and super dm wo with --allow-main-chat override.
- Implemented file transfer staging and metadata registry in super dm send-file and super dm files (with clean subcommand).
- Added full job lifecycle management (show, create, enable, disable, delete, run --follow) to super-cli.py and box-ctl.py.
- Audited all jobs in jobs/*.json and redirected automated dispatches away from Main Chat.
- Hardened chromebox-watchdog.sh with systemd user session environment exports and stale singleton cleanup.
- Added compose_check command choice to muse-chat-api.py.

bin/followup-sweeper.py

@@ -23,9 +23,18 @@ from pathlib import Path
 # Paths
 NETVM_ROOT = Path("/home/super/Projects/NetVM")
 BIN_DIR = NETVM_ROOT / "bin"
+JOBS_DIR = NETVM_ROOT / "jobs"
 FOLLOWUPS_FILE = NETVM_ROOT / "followups.json"
 JOB_LOG = NETVM_ROOT / "job-log.jsonl"
 DM_PY = BIN_DIR / "dm.py"
+DISPATCH_PY = BIN_DIR / "job-dispatch.py"
+
+sys.path.insert(0, str(BIN_DIR))
+try:
+    import pipeline_engine
+    HAS_PIPELINE = True
+except ImportError:
+    HAS_PIPELINE = False
 
 
 def utcnow_dt():
@@ -177,6 +186,33 @@ def sweep_cycle(dry_run=False):
                     "recipient": recipient,
                     "escalated_to": escalate_to,
                 })
+
+                # Check if this dm_id belongs to an active pipeline step
+                if HAS_PIPELINE:
+                    run_entry, step_entry = pipeline_engine.record_step_timeout(dm_id)
+                    if run_entry and step_entry:
+                        j_name = step_entry.get("job_name")
+                        j_file = JOBS_DIR / f"{j_name}.json"
+                        if j_file.exists():
+                            try:
+                                with open(j_file, "r", encoding="utf-8") as f:
+                                    j_cfg = json.load(f)
+                                on_failure = j_cfg.get("on_failure")
+                                if on_failure and (JOBS_DIR / f"{on_failure}.json").exists():
+                                    env = os.environ.copy()
+                                    env["CHAIN_PREV_JOB_ID"] = step_entry.get("job_id")
+                                    env["CHAIN_PREV_RESULT"] = f"TIMEOUT: Agent {recipient} timed out after {nudges_allowed} nudges"
+                                    env["CHAIN_PIPELINE_RUN_ID"] = run_entry.get("run_id")
+                                    next_step_n = step_entry.get("step_n", 1) + 1
+                                    env["CHAIN_STEP_N"] = str(next_step_n)
+                                    cmd = [sys.executable, str(DISPATCH_PY), on_failure,
+                                           "--pipeline-run", run_entry.get("run_id"),
+                                           "--step-n", str(next_step_n)]
+                                    subprocess.Popen(cmd, env=env, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+                                else:
+                                    pipeline_engine.fail_pipeline(run_entry.get("run_id"), "step_timed_out_without_fallback")
+                            except Exception:
+                                pass
             else:
                 escalations_count += 1