feat: initial project setup

- Add .NET 8 backend with Clean Architecture
- Add React + Vite + TypeScript frontend
- Implement authentication with JWT
- Implement Azure Blob Storage client
- Implement OCR integration
- Implement supplier matching service
- Implement voucher generation
- Implement Fortnox provider
- Add unit and integration tests
- Add Docker Compose configuration

.gitignore

@@ -0,0 +1,110 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Virtual environments
+venv/
+ENV/
+env/
+.venv
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Environment variables
+.env
+.env.local
+.env.*.local
+!.env.example
+
+# Database
+*.db
+*.sqlite
+*.sqlite3
+
+# Logs
+*.log
+logs/
+
+# Testing
+.coverage
+.pytest_cache/
+htmlcov/
+.tox/
+.nox/
+
+# MyPy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Terraform
+.terraform/
+*.tfstate
+*.tfstate.*
+*.tfvars
+!.tfvars.example
+.terraform.lock.hcl
+
+# Node.js
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# Build outputs
+dist/
+dist-ssr/
+build/
+*.local
+
+# TypeScript
+*.tsbuildinfo
+
+# Vite
+.vite/
+
+# Coverage
+coverage/
+
+# Temporary files
+*.tmp
+*.temp
+.cache/
+
+# Azure
+azure_credentials.json
+
+# Secrets
+*.pem
+*.key
+secrets/
+
+# OS
+Thumbs.db