feat: add job maintenance dashboard and automated stale job expiration system

internal/ui/templates.go

@@ -72,6 +72,7 @@ type PageData struct {
 	Targets            []db.SearchTarget
 	Jobs               []db.JobWithAnalysis
 	Applications       []db.JobWithAnalysis
+	MaintenanceStats   map[string]int
 	ActiveTab          string
 	LLMProvider        string
 	ToReviewCount      int
@@ -92,6 +93,7 @@ func init() {
 		jobDetailHTML,
 		targetsTabHTML,
 		targetListHTML,
+		preferencesTabHTML,
 		applyTabHTML,
 		applyTableHTML,
 		kanbanBoardHTML,
@@ -131,3 +133,8 @@ func RenderKanbanBoard(w io.Writer, apps []db.JobWithAnalysis) error {
 func RenderApplyTable(w io.Writer, apps []db.JobWithAnalysis) error {
 	return rootTemplate.ExecuteTemplate(w, "applyTable", apps)
 }
+
+func RenderPreferencesTab(w io.Writer, data PageData) error {
+	return rootTemplate.ExecuteTemplate(w, "preferencesTab", data)
+}
+