feat: add puzzle component and image upload functionality

- Introduced a new Puzzle component for interactive puzzle gameplay.
- Updated StepForm to include fields for puzzle image and number of pieces.
- Implemented image upload handling in the server-side logic for steps.
- Enhanced database schema to store image URLs and puzzle piece counts.
- Added file upload utilities for managing uploaded images.
- Created routes for serving uploaded images securely.
- Updated game play routes to handle puzzle completion logic.
- Improved error handling for image uploads and puzzle configurations.

drizzle/0002_naive_loa.sql

@@ -0,0 +1,2 @@
+ALTER TABLE "step" ADD COLUMN "image_url" text;--> statement-breakpoint
+ALTER TABLE "step" ADD COLUMN "puzzle_pieces" integer;