diff --git a/README.md b/README.md
index 944680ca..1f322ec7 100644
--- a/README.md
+++ b/README.md
@@ -98,7 +98,7 @@ does).
 | `host/geocheck.py` | 3-probe geo-gate verdict (ipinfo → Polymarket's `/api/geoblock` → unauth CLOB order POST); runs at every boot, `GEOCHECK_ONLY=1` = probe-and-idle for testing a new host/region without a second book-writer |
 | `live/discord_daily.py` | the daily Discord digest (the only Discord output) |
 | `copybot.py` | the copy-trading bot: push/poll trigger → follow filter → execution engine (paper + live) |
-| `archive/copytrade.py` | the execution engine the bot reuses: sizing, risk gates, price guard, paper/live executors |
+| `copytrade.py` | the execution engine the bot reuses: sizing, risk gates, price guard, paper/live executors (moved out of archive/ 2026-07-08 — nothing load-bearing lives in archive) |
 | `host/start.sh` | 24/7 worker bootstrap for Fly/any VPS (geo-gate check, clones repo, resumes committed state) |
 | `LIVE_TEST.md` · `preflight_live.py` · `redeem.py` | real-money runbook, read-only credential preflight, on-chain redemption |
 | `insider.py` | the original detector: z-score, pre-resolution timing, fresh-wallet flags, funding-cluster rings |
diff --git a/archive/backtest.py b/archive/backtest.py
index b65ebcb3..c1d0874a 100644
--- a/archive/backtest.py
+++ b/archive/backtest.py
@@ -21,6 +21,7 @@ import time
 from collections import defaultdict
 
 import smart_money as sm
+import sys, os; sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))  # copytrade lives at the repo root since 2026-07-08
 from copytrade import clob_price, DEFAULT_CONFIG, load_json
 
 LOOKBACK_DAYS = 21          # how far before the window we try to read, for seed
diff --git a/archive/lp_paper.py b/archive/lp_paper.py
index 2e0b7a06..4759cdd8 100644
--- a/archive/lp_paper.py
+++ b/archive/lp_paper.py
@@ -34,6 +34,7 @@ import time
 from concurrent.futures import ThreadPoolExecutor
 
 from lp_screener import get, reward_markets, daily_rate, hours_to_end, realized_vol_cents, CLOB
+import sys, os; sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))  # copytrade lives at the repo root since 2026-07-08
 from copytrade import post_discord, load_json
 
 STATE_PATH = "lp_paper_state.json"
diff --git a/copybot.py b/copybot.py
index d1d3f758..efa7b7d7 100644
--- a/copybot.py
+++ b/copybot.py
@@ -50,9 +50,7 @@ import urllib.error
 import urllib.request
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 
-# reuse the proven execution engine as a library (kept in archive/)
-sys.path.insert(0, os.path.join(os.path.dirname(__file__), "archive"))
-from copytrade import (  # noqa: E402
+from copytrade import (  # the execution engine (sizing, gates, executors)
     CopyTrader, PaperExecutor, LiveExecutor, DEFAULT_CONFIG,
     load_json, save_json, new_state, recent_trades, confirm_live,
 )
diff --git a/archive/copytrade.py b/copytrade.py
similarity index 100%
rename from archive/copytrade.py
rename to copytrade.py
diff --git a/fly.toml b/fly.toml
index 4eb45419..4e98c665 100644
--- a/fly.toml
+++ b/fly.toml
@@ -23,3 +23,15 @@ primary_region = "arn"
 [[vm]]
   size = "shared-cpu-1x"
   memory = "512mb"
+
+# health check: Fly restarts the machine if /health stops answering — the
+# self-heal half of the watchdog (the notify half is the GitHub Actions
+# watchdog workflow -> Discord). grace covers the boot clone.
+[checks]
+  [checks.health]
+    type = "http"
+    port = 8080
+    path = "/health"
+    interval = "30s"
+    timeout = "5s"
+    grace_period = "60s"