Add support for kreuzberg

[p-j-smith]

Fixes #37

• add a package pybonb/packages/ocr/kreuzberg that launches the kreuzberg rest API
• add this package as a uv workspace member (so you can install it with uv sync --extra kreuzberg
• add a router for kreuzberg to the forwarding API
• add a kreuzberg docker service
• add tests for the kreuzberg-ocr/inference_single endpoint and healthchecks

[Copilot]

Pull Request Overview

This PR adds support for the Kreuzberg OCR service to the pyonb project. It implements a new OCR option alongside existing services like marker, paddleocr, sparrow, and docling.

• Creates a new pyonb-kreuzberg package with Docker support and API integration
• Adds routing capabilities for Kreuzberg through the forwarding API
• Implements comprehensive test coverage for health checks and inference endpoints

Reviewed Changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/api/test_routers.py	Adds health check and inference tests for Kreuzberg OCR
tests/api/test_app.py	Includes Kreuzberg container in health check tests
tests/.env.tests	Adds Kreuzberg API port configuration
src/api/requirements.txt	Adds aiohttp dependency for async HTTP requests
src/api/app/routers/kreuzberg.py	Implements Kreuzberg router with health and inference endpoints
src/api/app/main.py	Registers Kreuzberg router and improves logging
pyproject.toml	Configures workspace and optional dependencies
packages/ocr/kreuzberg/src/pyonb_kreuzberg/api.py	Main API implementation using Litestar
packages/ocr/kreuzberg/src/pyonb_kreuzberg/__init__.py	Package initialization
packages/ocr/kreuzberg/pyproject.toml	Package configuration
packages/ocr/kreuzberg/README.md	Documentation for setup and usage
packages/ocr/kreuzberg/Dockerfile	Docker container configuration
docker-compose.yml	Adds Kreuzberg service definition
.env.sample	Updates environment variable template

Comments suppressed due to low confidence (1)

src/api/app/routers/kreuzberg.py:1

• The KREUZBERG_API_PORT environment variable is a string, but uvicorn.run() expects an integer for the port parameter. This should be converted using int(KREUZBERG_API_PORT).

"""Routers for Kreuzberg OCR."""

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