feat(17-01): add S3 storage service with upload, delete, and presigned URL support

- Create storage.service.ts wrapping @aws-sdk/client-s3 with forcePathStyle for MinIO
- Export uploadImage, deleteImage, getImageUrl, withImageUrl, withImageUrls
- Add unit tests with mocked S3Client (8 tests passing)
- Install @aws-sdk/client-s3 and @aws-sdk/s3-request-presigner

package.json

@@ -35,6 +35,8 @@
 		"typescript": "^5.9.3"
 	},
 	"dependencies": {
+		"@aws-sdk/client-s3": "^3.1024.0",
+		"@aws-sdk/s3-request-presigner": "^3.1024.0",
 		"@hono/zod-validator": "^0.7.6",
 		"@modelcontextprotocol/sdk": "^1.29.0",
 		"@tailwindcss/vite": "^4.2.1",