feat: 支持漏洞关联多条流量证据

db/schema.sql

@@ -1058,6 +1058,39 @@ CREATE INDEX IF NOT EXISTS idx_findings_status ON findings(status, created_at DE
 -- 「按资产」视图靠 asset_ids @> '[<id>]' 反查发现,没有这个 GIN 索引就是全表扫。
 CREATE INDEX IF NOT EXISTS idx_findings_asset_ids ON findings USING GIN(asset_ids jsonb_path_ops);
 
+ALTER TABLE findings ADD COLUMN IF NOT EXISTS evidence_version BIGINT NOT NULL DEFAULT 0;
+ALTER TABLE findings ADD COLUMN IF NOT EXISTS report_evidence_version BIGINT NOT NULL DEFAULT 0;
+
+CREATE TABLE IF NOT EXISTS traffic_evidence_snapshots (
+    id TEXT PRIMARY KEY,
+    source_traffic_id TEXT NOT NULL,
+    captured_at BIGINT NOT NULL,
+    url TEXT NOT NULL,
+    method TEXT NOT NULL,
+    status INTEGER NOT NULL,
+    content_type TEXT NOT NULL DEFAULT '',
+    req_head TEXT NOT NULL,
+    resp_head TEXT NOT NULL,
+    req_hash TEXT NOT NULL,
+    resp_hash TEXT NOT NULL,
+    req_len BIGINT NOT NULL,
+    resp_len BIGINT NOT NULL,
+    unreferenced_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+CREATE TABLE IF NOT EXISTS finding_traffic_bindings (
+    id BIGSERIAL PRIMARY KEY,
+    finding_id BIGINT NOT NULL REFERENCES findings(id) ON DELETE CASCADE,
+    snapshot_id TEXT NOT NULL REFERENCES traffic_evidence_snapshots(id),
+    role TEXT NOT NULL DEFAULT 'supporting',
+    note TEXT NOT NULL DEFAULT '',
+    position INTEGER NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    UNIQUE(finding_id, snapshot_id)
+);
+CREATE INDEX IF NOT EXISTS idx_finding_traffic_order ON finding_traffic_bindings(finding_id, position, id);
+CREATE INDEX IF NOT EXISTS idx_finding_traffic_snapshot ON finding_traffic_bindings(snapshot_id);
+
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 -- M. 后端日志持久化
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