chore: prepare backend for production release

chore: Update OCR engine and related services

feat: Add Website Parser, LLM Summarization, and Document Types

fix: Resolve 500 error on CSV export and restrict all exports to 2 columns

fix: Improve table parser heuristics to handle single cell colon keys and 2-cell key-value rows

feat: Intelligent inline colon mapping and datetime inference

fix: Bad regex escape \R in json_mapper.py

fix: Python docstring syntax error in json_mapper.py

feat: Enhance extraction engine to dynamically map generic field names based on semantic value recognition

Fix python absolute imports in services for root execution context

Fix python absolute imports and Docker CMD for root execution context

Fix OpenCV apt dependency libgl1 for Debian Trixie

Add HuggingFace configuration README

HF Backend Commit