Initial travel knowledge graph release

app/api/treatment_history.py

@@ -0,0 +1,27 @@
+"""STEP 04 — Treatment History (历史治理记录)."""
+from fastapi import APIRouter, Depends
+
+from app.auth import CurrentUser
+from app.config import settings
+from app.db import get_conn
+
+router = APIRouter()
+
+
+@router.get("/treatment-history")
+async def _list(limit: int = 50, _user: CurrentUser = None):
+    s = settings.db_schema
+    async with get_conn() as conn:
+        async with conn.cursor() as cur:
+            await cur.execute(
+                f"""SELECT
+                    ra.id, ra.candidate_id, ra.candidate_type,
+                    ra.action, ra.actor, ra.note, ra.field_decisions_jsonb,
+                    ra.created_at,
+                    ce.entity_type, ce.natural_key
+                FROM {s}.review_actions ra
+                LEFT JOIN {s}.candidate_entities ce ON ra.candidate_id=ce.id
+                ORDER BY ra.created_at DESC LIMIT %s""",
+                (limit,),
+            )
+            return await cur.fetchall()