violent-move watch: display-only warning line + owner heads-up (dark by default)

New violent_watch.py assesses each scan from the cached Forex Factory week events, the
UTC clock and the report's own indicator states, and stamps SignalReport.watch_line
post-hoc (telegram alerts, CLI, dashboard). A standalone heads-up goes to the owner on
the fastest scanned timeframe when the level is "hot", once per UTC hour per trigger
set, capped per day. Config block `violent_watch` (enabled False, alert_line, headsup,
max_headsup_per_day, headsup_min_level); env VIOLENT_WATCH_ENABLED.

Rule chosen from a 3-year bar-by-bar sweep (backtest/research/watch_rule_eval.py,
recorded in sizing_campaign_2026-09.md): hot = high-impact USD release within 30 min
(before or after) OR a hot clock slot (weekday 12-14 UTC, 01 UTC, Sunday 22-23 UTC)
with at least one price-extreme reading (outside Bollinger bands, RSI <30/>=70, outside
Keltner); ~8.6% of bars, next-bar odds 3-5x normal, ~4 hot hours/day. watch = clock
slot alone or two price-extreme readings (~2x). Context readings (ADX rising, extreme
volatility, transitioning, MACD acceleration) are phrases only - letting them raise the
level flagged 27% of bars at ~2x and would have sent ~13 heads-ups/day (rejected).
Direction sentence: DOWN when bearish readings dominate (70-78% on both TFs), UP on M5
only. Never a gate or exit: every open-trade protection tested lost money.

Test-locked out of analyze_from_dataframes / engine / backtester. Module 30 (18 tests).
Suite: 453 passed. Guide PDFs not rebuilt.

Claude-Session: https://claude.ai/code/session_01RWV2yLt3YXHHGVYHSQU2EE

docs/beginner_guide.html

@@ -86,6 +86,7 @@
 <li><b>Grade (A+, A, B, C):</b> the bot's own mark for how clean the setup is. A+ is best. It never sends anything worse than C.</li>
 <li><b>Confidence and the indicator list:</b> extra detail for curious people. You don't need to understand it to trade the signal.</li>
 <li><b>⚠️ Warning lines:</b> things the bot noticed, like high volatility. They are "be aware," not "don't trade."</li>
+<li><b>🌪 Violent-move watch:</b> now and then the bot adds a line saying the next hour could produce very big candles — usually because an important American economic number is about to come out, or the market is in an hour that is historically wild, or the price has stretched a long way from normal. It is only a "hold on tight" note. It does not change the signal, and it is not a reason to close or move your stop loss early — the bot was tested doing exactly that and it lost money. Your stop loss is already your protection; leave it where it is.</li>
 <li><b>📰 News line:</b> a short plain-English note on what is moving the gold price right now and why, written from the last few hours of headlines. It is background information, not a reason to trade.</li>
 <li><b>The trade setup at the bottom is the only part you must act on.</b></li>
 </ul>