Fix GrobidClient tuple result handling

Fix GrobidClient.process_pdf() method calls with required parameters

Refactor to use GrobidClient SDK instead of direct API calls

Add companion app

Fix workdir

rm gradio file and use original Dockerfile

Add raw XML output display for debugging

Add debugging and service test functionality

Fix Grobid working directory - start service from /opt/grobid to find config files

Fix Grobid service path and remove unsupported Gradio help parameter

Use official grobid/grobid image and match original kermitt2 configuration

Fix Dockerfile - remove non-existent /data/db path

Add Grobid PDF processor with Docker setup

initial commit