fix: suppress pdfminer warnings to prevent upload halting

- Added warning suppression for pdfminer warnings during Docling PDF processing
- Suppresses 'Cannot set gray non-stroke color' warnings that cause uploads to halt
- Temporarily sets pdfminer logger to ERROR level during document processing
- Fixes issue where files ~34MB would fail due to pdfminer warning spam

Resolves issue where PDF uploads would halt with repeated pdfminer warnings

surfsense_backend/pyproject.toml

@@ -1,3 +1,14 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+packages = ["app"]
+include-package-data = false
+
+[tool.setuptools.package-data]
+app = ["**/*"]
+
 [project]
 name = "surf-new-backend"
 version = "0.0.8"