Phase 1 Week 3: Core Progress APIs

- Create internal/handlers/progress.go with universal progress endpoints
- GET /api/progress/:id - Get progress with all location references
- POST /api/progress/:id - Update progress with automatic conversion
- GET /api/progress/:id/history - Get reading session history
- Progress response includes:
  - format_group (reflowable, fixed_layout, comic_archive)
  - percentage (0.0-1.0)
  - location_references (page, epubcfi, chapter, character)
  - device_sync information
- UpdateUniversalProgress accepts multiple input formats:
  - percentage directly
  - page/total_pages (auto-converts to percentage)
  - epubcfi for EPUBs
  - chapter/chapter_progress
- Uses sync package for format conversion
- Backward compatible with existing progress endpoints
- Add routes to SetupRoutes in ebook.go
- Fixes pgtype wrapper type access (.Float64, .Int32, .Int64)

internal/handlers/ebook.go

@@ -76,10 +76,17 @@ func SetupRoutes(g *echo.Group, db *database.Queries) *Handler {
 	g.GET("/media-items/:id/rating", h.GetMediaRating)
 	g.PUT("/media-items/:id/rating", h.UpdateMediaRating)
 	g.DELETE("/media-items/:id/rating", h.DeleteMediaRating)
+
+	// Legacy progress routes (deprecated - use universal progress instead)
 	g.GET("/media-items/:id/progress", h.GetMediaReadingProgress)
 	g.PUT("/media-items/:id/progress", h.UpdateMediaReadingProgress)
 	g.DELETE("/media-items/:id/progress", h.DeleteMediaReadingProgress)
 
+	// Universal Progress routes (Phase 1)
+	g.GET("/progress/:id", h.GetUniversalProgress)
+	g.POST("/progress/:id", h.UpdateUniversalProgress)
+	g.GET("/progress/:id/history", h.GetProgressHistory)
+
 	// Notes routes
 	g.GET("/media-items/:id/notes", h.GetMediaNotes)
 	g.POST("/media-items/:id/notes", h.CreateMediaNote)