docs: carry the risk-monitor wording through docs, comments and logs

Follows 5ea0785, which renamed the user-visible labels. This finishes the pass
so code, docs and operator output use one vocabulary: README (pipeline list,
route table, FRED row), the methodology doc title, .env.example and config
comments, the snapshot model / event-study / service / test docstrings, the
scheduler section headers and morning-pipeline docstring, the TopBar status
text ("bullish regime" -> "bullish trend"), and the four "Regime monitor:" log
prefixes.

Deliberately NOT changed, because "market regime" is also a standard finance
term and most occurrences are not this job: the backtest caveat "~6 months is
roughly one market regime" in backtest_service, README, BacktestPanel and every
generated reports/*.json; "a regime shift" in TrackRecordPanel; and the
capacity-bracket findings doc. Renaming those would have made the text wrong.

Also unchanged, being persisted or externally linked rather than wording: the
regime_monitor / market_regime job ids, the regime_quadrant_enabled setting key,
the /regime route, METHODOLOGY and the snapshot fields, the service/test module
filenames, and docs/research/regime-monitor-v3.md's path (referenced from commit
messages). The doc now carries a one-line note recording the old name and why
those identifiers still use it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/research/regime-monitor-v3.md

@@ -1,6 +1,10 @@
-# Regime Monitor v3 methodology
+# AI/Tech Risk Monitor v3 methodology
 
-The Regime Monitor is an observational AI/Tech risk thermometer. It does not
+Named "Regime Monitor" until 2026-08-07; the filename, the `regime_monitor` job
+id, the `/regime` route and the `METHODOLOGY`/snapshot fields keep the old word,
+because those are persisted or externally linked. Only the wording changed.
+
+The AI/Tech Risk Monitor is an observational risk thermometer. It does not
 gate entries, exits, position size, ranking, or alerts about individual setups.
 
 v3 supersedes v2. Every parameter below was calibrated against the 408 v2