Add comprehensive test suite for image processing and related services

- Implement tests for database generator to ensure proper session handling.
- Create tests for EXIF extraction and conversion functions.
- Add tests for image-related endpoints, ensuring proper data retrieval and isolation between clients.
- Develop tests for OCR functionality, including language detection and text extraction.
- Introduce tests for the image processing pipeline, covering success and failure scenarios.
- Validate rate limiting functionality and ensure independent counters for different clients.
- Implement scraper tests to verify HTML content fetching and error handling.
- Add unit tests for various services, including storage and filename generation.
- Establish worker entry point for ARQ to handle background image processing tasks.

debug_numpy.py

@@ -0,0 +1,13 @@
+import sys
+import os
+print(f"Current working directory: {os.getcwd()}")
+print(f"Python path: {sys.path}")
+
+try:
+    import numpy
+    print(f"Numpy file: {numpy.__file__}")
+    print(f"Numpy version: {numpy.__version__}")
+except ImportError as e:
+    print(f"Error importing numpy: {e}")
+except Exception as e:
+    print(f"Unexpected error: {e}")