Add 'In Progress' tab to history sidebar

Features:
- New "In Progress" tab shows running/pending jobs
- Displays active jobs without opening full queue
- Tab positioned first for quick visibility
- Shows "Running..." or "Pending" status
- No delete button on active jobs (only completed/failed)

Implementation:
- Updated BuildHistorySidebar to accept activeJobs parameter
- Converts queue.Job to ui.HistoryEntry for display
- Filters running/pending jobs from queue
- Conditional delete button (nil check)
- Dynamic status text based on job state

UX Improvements:
- Quick glance at current activity without queue view
- Three-tab layout: In Progress → Completed → Failed
- Consistent styling with existing history entries
- Tappable entries to view full job details

This allows users to monitor active conversions directly
from the history sidebar, reducing the need to constantly
check the full job queue view.

internal/ui/mainmenu.go

@@ -153,6 +153,7 @@ func sortedKeys(m map[string][]fyne.CanvasObject) []string {
 // BuildHistorySidebar creates the history sidebar with tabs
 func BuildHistorySidebar(
 	entries []HistoryEntry,
+	activeJobs []HistoryEntry,
 	onEntryClick func(HistoryEntry),
 	onEntryDelete func(HistoryEntry),
 	titleColor, bgColor, textColor color.Color,
@@ -168,11 +169,13 @@ func BuildHistorySidebar(
 	}
 
 	// Build lists
+	inProgressList := buildHistoryList(activeJobs, onEntryClick, nil, bgColor, textColor) // No delete for active jobs
 	completedList := buildHistoryList(completedEntries, onEntryClick, onEntryDelete, bgColor, textColor)
 	failedList := buildHistoryList(failedEntries, onEntryClick, onEntryDelete, bgColor, textColor)
 
-	// Tabs
+	// Tabs - In Progress first for quick visibility
 	tabs := container.NewAppTabs(
+		container.NewTabItem("In Progress", container.NewVScroll(inProgressList)),
 		container.NewTabItem("Completed", container.NewVScroll(completedList)),
 		container.NewTabItem("Failed", container.NewVScroll(failedList)),
 	)
@@ -220,20 +223,37 @@ func buildHistoryItem(
 	// Capture entry for closures
 	capturedEntry := entry
 
-	// Delete button - small "×" button
-	deleteBtn := widget.NewButton("×", func() {
-		onEntryDelete(capturedEntry)
-	})
-	deleteBtn.Importance = widget.LowImportance
+	// Build header row with badge and optional delete button
+	headerItems := []fyne.CanvasObject{badge, layout.NewSpacer()}
+	if onEntryDelete != nil {
+		// Delete button - small "×" button (only for completed/failed)
+		deleteBtn := widget.NewButton("×", func() {
+			onEntryDelete(capturedEntry)
+		})
+		deleteBtn.Importance = widget.LowImportance
+		headerItems = append(headerItems, deleteBtn)
+	}
 
 	// Title
 	titleLabel := widget.NewLabel(utils.ShortenMiddle(entry.Title, 25))
 	titleLabel.TextStyle = fyne.TextStyle{Bold: true}
 
-	// Timestamp
-	timeStr := "Unknown"
-	if entry.CompletedAt != nil {
-		timeStr = entry.CompletedAt.Format("Jan 2, 15:04")
+	// Timestamp or status info
+	var timeStr string
+	if entry.Status == queue.JobStatusRunning || entry.Status == queue.JobStatusPending {
+		// For in-progress jobs, show status
+		if entry.Status == queue.JobStatusRunning {
+			timeStr = "Running..."
+		} else {
+			timeStr = "Pending"
+		}
+	} else {
+		// For completed/failed jobs, show timestamp
+		if entry.CompletedAt != nil {
+			timeStr = entry.CompletedAt.Format("Jan 2, 15:04")
+		} else {
+			timeStr = "Unknown"
+		}
 	}
 	timeLabel := widget.NewLabel(timeStr)
 	timeLabel.TextStyle = fyne.TextStyle{Monospace: true}
@@ -246,7 +266,7 @@ func buildHistoryItem(
 	content := container.NewBorder(
 		nil, nil, statusRect, nil,
 		container.NewVBox(
-			container.NewHBox(badge, layout.NewSpacer(), deleteBtn),
+			container.NewHBox(headerItems...),
 			titleLabel,
 			timeLabel,
 		),

main.go

@@ -1372,8 +1372,33 @@ func (s *appState) showMainMenu() {
 	// Build sidebar if visible
 	var sidebar fyne.CanvasObject
 	if s.sidebarVisible {
+		// Get active jobs from queue (running/pending)
+		var activeJobs []ui.HistoryEntry
+		if s.jobQueue != nil {
+			for _, job := range s.jobQueue.List() {
+				if job.Status == queue.JobStatusRunning || job.Status == queue.JobStatusPending {
+					// Convert queue.Job to ui.HistoryEntry
+					entry := ui.HistoryEntry{
+						ID:         job.ID,
+						Type:       job.Type,
+						Status:     job.Status,
+						Title:      job.Title,
+						InputFile:  job.InputFile,
+						OutputFile: job.OutputFile,
+						LogPath:    job.LogPath,
+						Config:     job.Config,
+						CreatedAt:  job.CreatedAt,
+						StartedAt:  job.StartedAt,
+						Error:      job.Error,
+					}
+					activeJobs = append(activeJobs, entry)
+				}
+			}
+		}
+
 		sidebar = ui.BuildHistorySidebar(
 			s.historyEntries,
+			activeJobs,
 			s.showHistoryDetails,
 			s.deleteHistoryEntry,
 			titleColor,