feat(investigations): add event impact and work-order feedback flows

Add isolated burst and pollution impact evidence, parallel work-order workflows, persisted notifications and graph updates. Checkpoint current code. Known follow-ups remain for large pollution result previews and graceful geometry failure.
2026-11-14 15:14:02 +08:00
parent 471ad92a47
commit 2e4f6cb93b
49 changed files with 1826 additions and 93 deletions
@@ -0,0 +1,34 @@
+"""Temporary deterministic candidate selection behind the source-tracing contract.
+
+Replace this selection with source inversion when the algorithm is available.
+Only project-owned nodes supplied from the investigation are eligible. No
+observation fit, confidence or contamination extent is inferred here.
+"""
+from psycopg import AsyncConnection
+
+from app.infra.db.postgresql.read_queries import read_rows
+from app.mcp.analysis_models import ContaminantSourceTraceInput
+
+
+async def trace_contaminant_source(connection: AsyncConnection, args: ContaminantSourceTraceInput) -> dict:
+    rows = await read_rows(connection, """
+        SELECT id, node_type::text AS kind FROM network.nodes
+        WHERE id = ANY(%s) ORDER BY id
+    """, (args.candidate_node_ids,))
+    # Sort in Python as well so selection does not depend on DB collation.
+    nodes = sorted({str(row["id"]) for row in rows})
+    selected = nodes[0] if nodes else None
+    return {
+        "located_node": selected,
+        "top_candidates": [{"node_id": selected}] if selected else [],
+        "exit_condition": "candidate_selected" if selected else "no_candidate",
+        "method": "deterministic_candidate_selection",
+        "algorithm_status": "provisional",
+        "selection_basis": "lexicographically_first_existing_candidate_node",
+        "validated_node_ids": nodes,
+        "missing_node_ids": sorted(set(args.candidate_node_ids) - set(nodes)),
+        "notice": ("已返回待现场核验的候选节点；先展示节点、保存阶段结论并提出现场核查／采样处置工单，"
+                   "工单审核派发与污染传播模拟、节点隔离及影响分析并行，结果补入同一调查。"
+                   "正式污染反演算法尚未接入，本次选择不代表污染源确诊或污染传播范围。" if selected else
+                   "提交的候选节点均不在当前项目模型中；核对事件位置及资产映射后重新提交，继续不依赖源节点的调查。"),
+    }