feat: add AdGuard + Scrutiny models

apps/dashboard/backend/app/models/sources.py

@@ -83,3 +83,27 @@ class HomeAssistantSnapshot(APIModel):
     version: str | None = None
     response_time_ms: int | None = None
     last_checked: datetime | None = None
+
+
+class AdGuardSnapshot(APIModel):
+    source_name: str = "adguard"
+    source_status: SourceStatus = "offline"
+    total_queries: int = 0
+    blocked_queries: int = 0
+    blocked_percent: float = 0.0
+    avg_processing_ms: float = 0.0
+
+
+class ScrutinyDevice(APIModel):
+    name: str
+    model: str
+    status: str = "unknown"  # "passed" | "failed" | "unknown"
+
+
+class ScrutinySnapshot(APIModel):
+    source_name: str = "scrutiny"
+    source_status: SourceStatus = "offline"
+    overall_status: str = "offline"
+    devices: list[ScrutinyDevice] = Field(default_factory=list)
+    failed_count: int = 0
+    total_count: int = 0