Remove min by shift type boundaries, improve logging, add more tests, add logs in tests, move fixtures in separate file, move restrictions_violated logic into valid_residents of next slot

src-tauri/src/errors.rs

@@ -1,5 +1,6 @@
 use std::io;
 
+use log::Level;
 use serde::Serialize;
 use thiserror::Error;
 
@@ -18,6 +19,16 @@ pub enum SearchError {
     NoSolutionFound,
 }
 
+impl SearchError {
+    pub fn log_level(&self) -> Level {
+        match self {
+            SearchError::SolutionFound | SearchError::ScheduleFull => Level::Info,
+            SearchError::NoSolutionFound => Level::Warn,
+            SearchError::Timeout | SearchError::Config(_) => Level::Error,
+        }
+    }
+}
+
 impl From<anyhow::Error> for SearchError {
     fn from(err: anyhow::Error) -> Self {
         SearchError::Config(err.to_string())