Enhance README with detailed service description, setup instructions, and example .env configuration for the FastAPI service that integrates with Paperless-ngx and llama.cpp for PDF processing.

tests/test_paperless_task_parse.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from notebook_tools.paperless_client import _document_id_from_task_payload
+
+
+def test_related_document_string() -> None:
+    assert (
+        _document_id_from_task_payload(
+            {
+                "related_document": "10",
+                "result": "Success. New document id 10 created",
+            }
+        )
+        == 10
+    )
+
+
+def test_result_string_only() -> None:
+    assert (
+        _document_id_from_task_payload(
+            {"related_document": None, "result": "Success. New document id 42 created"}
+        )
+        == 42
+    )
+
+
+def test_related_document_int() -> None:
+    assert _document_id_from_task_payload({"related_document": 7}) == 7