Refactor backend services and jail configuration

- Refactor action_config_service, filter_config_service, jail_config_service, and jail_service
- Add jail_socket utility module for socket communication
- Update test_jail_service with new test cases
- Update architecture and task documentation

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

backend/app/services/action_config_service.py

@@ -25,13 +25,6 @@ from app.exceptions import (
     ConfigWriteError,
     JailNotFoundInConfigError,
 )
-import app.services.jail_service as jail_service
-from app.utils.config_file_utils import (
-    _get_active_jail_names as _config_file_get_active_jail_names,
-    _parse_jails_sync as _config_file_parse_jails_sync,
-    _safe_jail_name,
-    build_parser,
-)
 from app.models.config import (
     ActionConfig,
     ActionConfigUpdate,
@@ -42,6 +35,17 @@ from app.models.config import (
 )
 from app.utils import conffile_parser
 from app.utils.async_utils import run_blocking
+from app.utils.config_file_utils import (
+    _get_active_jail_names as _config_file_get_active_jail_names,
+)
+from app.utils.config_file_utils import (
+    _parse_jails_sync as _config_file_parse_jails_sync,
+)
+from app.utils.config_file_utils import (
+    _safe_jail_name,
+    build_parser,
+)
+from app.utils.jail_socket import reload_all
 
 log: structlog.stdlib.BoundLogger = structlog.get_logger()
 
@@ -681,7 +685,7 @@ async def update_action(
 
     if do_reload:
         try:
-            await jail_service.reload_all(socket_path)
+            await reload_all(socket_path)
         except Exception as exc:  # noqa: BLE001
             log.warning(
                 "reload_after_action_update_failed",
@@ -749,7 +753,7 @@ async def create_action(
 
     if do_reload:
         try:
-            await jail_service.reload_all(socket_path)
+            await reload_all(socket_path)
         except Exception as exc:  # noqa: BLE001
             log.warning(
                 "reload_after_action_create_failed",
@@ -874,7 +878,7 @@ async def assign_action_to_jail(
 
     if do_reload:
         try:
-            await jail_service.reload_all(socket_path)
+            await reload_all(socket_path)
         except Exception as exc:  # noqa: BLE001
             log.warning(
                 "reload_after_assign_action_failed",
@@ -932,7 +936,7 @@ async def remove_action_from_jail(
 
     if do_reload:
         try:
-            await jail_service.reload_all(socket_path)
+            await reload_all(socket_path)
         except Exception as exc:  # noqa: BLE001
             log.warning(
                 "reload_after_remove_action_failed",