feat: hide event types from SAC UI via Settings checkbox (0.20.23)

Per-type «Показывать в событиях» in severity settings; filters lists, dashboard, hosts, and problems.

backend/app/api/v1/settings.py

@@ -1,4 +1,4 @@
-from dataclasses import replace
+from dataclasses import replace
 
 from datetime import datetime
 
@@ -37,6 +37,7 @@ from app.services.event_severity_overrides import (
     list_severity_override_items,
     replace_severity_overrides,
 )
+from app.services.event_type_visibility import replace_event_visibility
 from app.services.ui_settings import (
     get_effective_ui_settings,
     upsert_ui_settings,
@@ -375,6 +376,7 @@ class EventSeverityOverrideRow(BaseModel):
     event_type: str
     default_severity: str
     override_severity: str | None = None
+    show_in_events: bool = True
 
 
 class EventSeverityOverridesResponse(BaseModel):
@@ -384,8 +386,25 @@ class EventSeverityOverridesResponse(BaseModel):
 
 class EventSeverityOverridesUpdate(BaseModel):
     overrides: dict[str, str | None] = Field(
+        default_factory=dict,
         description="event_type → severity; null или пустая строка сбрасывает override",
     )
+    visibility: dict[str, bool | None] = Field(
+        default_factory=dict,
+        description="event_type → show_in_events; null или true сбрасывает скрытие (показывать)",
+    )
+
+
+def _severity_override_rows(items) -> list[EventSeverityOverrideRow]:
+    return [
+        EventSeverityOverrideRow(
+            event_type=i.event_type,
+            default_severity=i.default_severity,
+            override_severity=i.override_severity,
+            show_in_events=i.show_in_events,
+        )
+        for i in items
+    ]
 
 
 @router.get("/notifications/severity-overrides", response_model=EventSeverityOverridesResponse)
@@ -395,14 +414,7 @@ def get_severity_overrides(
 ) -> EventSeverityOverridesResponse:
     items = list_severity_override_items(db)
     return EventSeverityOverridesResponse(
-        items=[
-            EventSeverityOverrideRow(
-                event_type=i.event_type,
-                default_severity=i.default_severity,
-                override_severity=i.override_severity,
-            )
-            for i in items
-        ],
+        items=_severity_override_rows(items),
         source=SOURCE_DB,
     )
 
@@ -414,19 +426,19 @@ def update_severity_overrides(
     _user=Depends(require_admin),
 ) -> EventSeverityOverridesResponse:
     try:
-        items = replace_severity_overrides(db, body.overrides)
+        items = list_severity_override_items(db)
+        if body.overrides:
+            items = replace_severity_overrides(db, body.overrides)
+        if body.visibility:
+            replace_event_visibility(db, body.visibility)
+            items = list_severity_override_items(db)
+        if not body.overrides and not body.visibility:
+            raise HTTPException(status_code=422, detail="Нет изменений для сохранения")
         db.commit()
     except ValueError as exc:
         raise HTTPException(status_code=422, detail=str(exc)) from exc
     return EventSeverityOverridesResponse(
-        items=[
-            EventSeverityOverrideRow(
-                event_type=i.event_type,
-                default_severity=i.default_severity,
-                override_severity=i.override_severity,
-            )
-            for i in items
-        ],
+        items=_severity_override_rows(items),
         source=SOURCE_DB,
     )