fix(progress): correct percentage display and add format-aware progress

Fix two bugs in progress display across book detail, progress page, reader,
and sync modal templates:

1. Percentage was stored as 0.0-1.0 fraction but displayed as-if 0-100
   (showing 0.5% instead of 50%). Multiply by 100 at the data source in
   both GetAllProgress and GetAllProgressData handlers, and in the reader
   route's ReadingProgress construction.

2. Progress bar width was never evaluated — { expr } inside style=".."
   was rendered as literal text by templ, resulting in 0% width bars for
   all items. Fixed by using templ's style={ expr } attribute syntax
   which evaluates the Go expression (uses SanitizeStyleAttributeValues).

Also add format-aware progress display:
- Reader template: shows "45% · Page 89/196" for reflowable (estimated
  pages), "127/342" for comics/PDFs (actual pages)
- Progress page: shows "Page X of Y (est.)" for reflowable, "X / Y"
  for fixed layout
- Add FormatGroup and EstimatedPages to ProgressWithMedia struct
- Remove hardcoded totalPages=200 fallback in progress handler (now 0)
- Add fmt import to progress.templ for string formatting

internal/handlers/progress.go

@@ -139,7 +139,7 @@ func (h *Handler) UpdateUniversalProgress(c *echo.Context) error {
 	}
 
 	currentPage := 0
-	totalPages := 200
+	totalPages := 0
 	if req.Location.Page != nil {
 		currentPage = *req.Location.Page
 	}
@@ -261,6 +261,8 @@ type ProgressWithMedia struct {
 	ProgressPercentage float64   `json:"-"`
 	EpubCFI            string    `json:"-"`
 	LastUpdated        string    `json:"-"`
+	FormatGroup        string    `json:"format_group"`
+	EstimatedPages     int       `json:"estimated_pages"`
 }
 
 // GetAllProgress retrieves all progress for a user with sync source info
@@ -318,10 +320,12 @@ func (h *Handler) GetAllProgress(c *echo.Context) error {
 			LastReadAt:         progress.LastReadAt.Time,
 			Epubcfi:            epubcfi,
 			LastSyncDevice:     deviceName,
-			ProgressPercentage: progress.Percentage.Float64,
+			ProgressPercentage: progress.Percentage.Float64 * 100,
 			EpubCFI:            epubcfi,
 			LastUpdated:        lastUpdated,
 			DeviceIcon:         getDeviceIcon(deviceName),
+			FormatGroup:        mediaItem.FormatGroup,
+			EstimatedPages:     wsync.EstimatedPages(mediaItem.TotalCharacters.Int64),
 		})
 	}
 
@@ -371,16 +375,19 @@ func (h *Handler) GetAllProgressData(c *echo.Context) ([]ProgressWithMedia, erro
 		}
 
 		progressList = append(progressList, ProgressWithMedia{
-			MediaItemID:    progress.MediaItemID.Bytes,
-			Title:          mediaItem.Title,
-			Author:         author,
-			CoverImagePath: coverPath,
-			Percentage:     progress.Percentage.Float64,
-			CurrentPage:    progress.CurrentPage.Int32,
-			TotalPages:     progress.TotalPages.Int32,
-			LastReadAt:     progress.LastReadAt.Time,
-			Epubcfi:        epubcfi,
-			LastSyncDevice: deviceName,
+			MediaItemID:        progress.MediaItemID.Bytes,
+			Title:              mediaItem.Title,
+			Author:             author,
+			CoverImagePath:     coverPath,
+			Percentage:         progress.Percentage.Float64,
+			CurrentPage:        progress.CurrentPage.Int32,
+			TotalPages:         progress.TotalPages.Int32,
+			LastReadAt:         progress.LastReadAt.Time,
+			Epubcfi:            epubcfi,
+			LastSyncDevice:     deviceName,
+			ProgressPercentage: progress.Percentage.Float64 * 100,
+			FormatGroup:        mediaItem.FormatGroup,
+			EstimatedPages:     wsync.EstimatedPages(mediaItem.TotalCharacters.Int64),
 		})
 	}