chore: merge main and release 3.7.3 bugfix bundle

Resolve conflicts with deep-reform (PR #452) while keeping bugfix branch
changes: sidebar visibility, verbose logging, device login name, and
notification archive. Bump to 3.7.3 with What's New release notes.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/plugins/built-in/timetable/index.ts

@@ -88,6 +88,8 @@ async function handleTimetable(): Promise<void> {
 }
 
 function handleTimetableZoom(): void {
+  if (document.querySelector(".timetable-zoom-controls")) return;
+
   verboseLog("Initializing timetable zoom controls");
 
   // Create zoom controls
@@ -136,6 +138,8 @@ function handleTimetableZoom(): void {
 }
 
 function handleTimetableAssessmentHide(): void {
+  if (document.querySelector(".timetable-hide-controls")) return;
+
   const hideControls = document.createElement("div");
   hideControls.className = "timetable-hide-controls";