first commit

backend/app/schemas/analysis.py

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+"""Analysis response schemas."""
+
+from decimal import Decimal
+from pydantic import BaseModel
+
+
+class AppSummary(BaseModel):
+    in_amount: Decimal
+    out_amount: Decimal
+
+
+class AnalysisSummaryResponse(BaseModel):
+    total_out: Decimal
+    total_in: Decimal
+    net_loss: Decimal
+    by_app: dict[str, AppSummary]
+    counterparty_count: int
+
+
+class FlowNode(BaseModel):
+    id: str
+    label: str
+    type: str | None = None  # victim_app | counterparty
+
+
+class FlowEdge(BaseModel):
+    source: str
+    target: str
+    amount: Decimal
+    count: int = 1
+
+
+class FlowGraphResponse(BaseModel):
+    nodes: list[FlowNode]
+    edges: list[FlowEdge]