feat: the trigger can ignore a noise band and reject HF before comparing

src/search.cpp

@@ -16,11 +16,11 @@ double ms_since(const std::chrono::steady_clock::time_point& t0) {
 }
 }  // namespace
 
-void BufferSearch::start(const EventCondition& c, int channel) {
+void BufferSearch::start(const EventCondition& c, int channel, double dt) {
   clear();
   channel_ = channel;
   detector_.reset();
-  detector_.configure(c);
+  detector_.configure(c, dt);
   // `configure()` is a no-op for an unchanged condition, so the explicit reset above is what
   // makes a re-run of the *same* search start from a clean machine.
   detector_.reset();