Add E2E tests, fix bugs

Made-with: Cursor

_docs/00_problem/input_data/data_parameters.md

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+# Input Data Parameters
+
+## API Request Schemas
+
+### Login
+- `email`: string — user email address
+- `password`: string — user password (plaintext)
+
+### Load Resource
+- `filename`: string — resource name (without `.big`/`.small` suffix)
+- `folder`: string — resource folder/bucket name
+
+### Upload Resource
+- `data`: binary file (multipart upload)
+- `filename`: string — resource name (path parameter)
+- `folder`: string — destination folder (form field, defaults to `"models"`)
+
+### Unlock
+- `email`: string — user email
+- `password`: string — user password
+
+## Configuration Files
+
+### cdn.yaml (downloaded encrypted from API)
+- `host`: string — S3 endpoint URL
+- `downloader_access_key`: string — read-only S3 access key
+- `downloader_access_secret`: string — read-only S3 secret key
+- `uploader_access_key`: string — write S3 access key
+- `uploader_access_secret`: string — write S3 secret key
+
+## JWT Token Claims
+- `nameid`: string — user GUID
+- `unique_name`: string — user email
+- `role`: string — one of: ApiAdmin, Admin, ResourceUploader, Validator, Operator
+
+## External Data Sources
+
+| Source | Data | Format | Direction |
+|--------|------|--------|-----------|
+| Azaion Resource API | JWT tokens, encrypted resources (small parts), CDN config, key fragments | JSON / binary | Download |
+| S3 CDN | Large resource parts (.big files) | Binary | Upload / Download |
+| Local filesystem | Encrypted Docker archive (`images.enc`), cached `.big` files | Binary | Read / Write |
+| Docker daemon | Image loading, image inspection | CLI stdout | Read |
+| Host OS | Hardware fingerprint (CPU, GPU, RAM, drive serial) | Text (subprocess) | Read |