Persist processing-log retention settings and wire cleanup defaults

backend/app/worker/tasks.py

@@ -5,10 +5,15 @@ from datetime import UTC, datetime
 from pathlib import Path
 
 from sqlalchemy import select
+from sqlalchemy.orm import Session
 
 from app.db.base import SessionLocal
 from app.models.document import Document, DocumentStatus
-from app.services.app_settings import read_handwriting_provider_settings, read_handwriting_style_settings
+from app.services.app_settings import (
+    read_handwriting_provider_settings,
+    read_handwriting_style_settings,
+    read_processing_log_retention_settings,
+)
 from app.services.extractor import (
     IMAGE_EXTENSIONS,
     extract_archive_members,
@@ -32,6 +37,17 @@ from app.services.storage import absolute_path, compute_sha256, store_bytes, wri
 from app.worker.queue import get_processing_queue
 
 
+def _cleanup_processing_logs_with_settings(session: Session) -> None:
+    """Applies configured processing log retention while trimming old log entries."""
+
+    retention = read_processing_log_retention_settings()
+    cleanup_processing_logs(
+        session=session,
+        keep_document_sessions=int(retention.get("keep_document_sessions", 2)),
+        keep_unbound_entries=int(retention.get("keep_unbound_entries", 80)),
+    )
+
+
 def _create_archive_member_document(
     parent: Document,
     member_name: str,
@@ -204,7 +220,7 @@ def process_document_task(document_id: str) -> None:
                 document=document,
                 payload_json={"status": document.status.value},
             )
-            cleanup_processing_logs(session=session, keep_document_sessions=2, keep_unbound_entries=80)
+            _cleanup_processing_logs_with_settings(session=session)
             session.commit()
             for child_id in child_ids:
                 queue.enqueue("app.worker.tasks.process_document_task", child_id)
@@ -239,7 +255,7 @@ def process_document_task(document_id: str) -> None:
                 document=document,
                 payload_json={"status": document.status.value},
             )
-            cleanup_processing_logs(session=session, keep_document_sessions=2, keep_unbound_entries=80)
+            _cleanup_processing_logs_with_settings(session=session)
             session.commit()
             return
 
@@ -330,7 +346,7 @@ def process_document_task(document_id: str) -> None:
                 document=document,
                 payload_json={"status": document.status.value},
             )
-            cleanup_processing_logs(session=session, keep_document_sessions=2, keep_unbound_entries=80)
+            _cleanup_processing_logs_with_settings(session=session)
             session.commit()
             return
 
@@ -362,7 +378,7 @@ def process_document_task(document_id: str) -> None:
                 document=document,
                 payload_json={"status": document.status.value},
             )
-            cleanup_processing_logs(session=session, keep_document_sessions=2, keep_unbound_entries=80)
+            _cleanup_processing_logs_with_settings(session=session)
             session.commit()
             return
 
@@ -540,5 +556,5 @@ def process_document_task(document_id: str) -> None:
             document=document,
             payload_json={"status": document.status.value},
         )
-        cleanup_processing_logs(session=session, keep_document_sessions=2, keep_unbound_entries=80)
+        _cleanup_processing_logs_with_settings(session=session)
         session.commit()