PRICE-01 review 3: tests for the round 3 note and dismiss; doc wording

- test_price_secret.py: the fixed-tariff note on the real /config/validate
  route, EN and NL, and none for a spaces-only profile (web.py lang wiring).
- test_price_service.py: the start line is INFO, not WARNING; a dismiss that
  raises does not stop the cycle.
- test_maint13/test_setup_only/test_watchdog: ignore only the dismiss of the
  old card, so a create with that id is still counted.
- DECISIONS rule 7 quotes the settings note as it is; messages.py comment.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bdqr7PiaHcBnzPituu2yTC

goodwe_controller/test_setup_only.py

@@ -455,8 +455,10 @@ check("the saved blob passes the normal gate: no refusal, not setup-only",
 print("\n    after the restart, on the saved settings:")
 rc, ev, err, files = run_child("after", SAVED or {}, SAVED_STATE)
 # Not the dismiss of PRICE-01's old fixed-tariff card, sent at every start.
+# Only that dismiss: a `create` with the old id would still be counted.
 services = [e for e in ev if e[0] == "SERVICE"
-            and e[3].get("notification_id") != "goodwe_fixed_tariff_unused"]
+            and not (e[1:3] == ["persistent_notification", "dismiss"]
+                     and e[3].get("notification_id") == "goodwe_fixed_tariff_unused")]
 writes = [e[3].get("value") for e in services
           if e[1:3] == ["number", "set_value"]]
 print(f"    after: exit {rc}, {len(services)} service calls, set_value "