fix: ship persistent bgp ai briefs and optimize bgp queries

backend/app/schemas/ai.py

@@ -21,6 +21,14 @@ class SituationalAnalysisRequest(BaseModel):
     thinking: dict[str, Any] | None = None
 
 
+class BGPBriefRequest(BaseModel):
+    incident_limit: int = Field(default=5, ge=1, le=10)
+    anomaly_limit: int = Field(default=6, ge=1, le=12)
+    collector_limit: int = Field(default=5, ge=1, le=10)
+    preferred_model: str | None = Field(default=None, max_length=200)
+    thinking: dict[str, Any] | None = None
+
+
 class SituationalAnalysisResponse(BaseModel):
     provider: str
     model: str
@@ -31,6 +39,19 @@ class SituationalAnalysisResponse(BaseModel):
     raw_response: dict[str, Any] = Field(default_factory=dict)
 
 
+class BGPBriefRecordSummary(BaseModel):
+    id: str
+    title: str
+    provider: str
+    model: str
+    request_id: str | None = None
+    generated_at: str
+
+
+class BGPBriefRecordResponse(BGPBriefRecordSummary):
+    content_markdown: str
+
+
 class AIProviderStatusResponse(BaseModel):
     provider: str
     api: str | None = None