feat: 漏洞详情页删除证据/元数据 Tab,新增「链路图」

链路图展示该漏洞所属任务探索图里,从初始节点(任务根)追溯到本漏洞节点的
那条链路:漏洞节点 + 其全部祖先(沿边反向可达)+ 之间的关系边。

- db.ExplorationStore.FindingLineage(nodeID):递归 CTE 取祖先子图(节点+边),
  下游(如 finding→proves→goal)与无关节点不纳入
- GET /api/exploration/findings/{id}/lineage:解析 finding 的 node_id/task_id →
  返回 {nodes,edges};无节点/任务已删 → 空图
- 前端 api.findingLineage;详情页 Tab 改为「概览 / 链路图」
- lineage.tsx:按深度拓扑排序,自根到漏洞纵向展示节点卡片 + 入边关系标注,
  漏洞节点高亮
- db 测试补 FindingLineage 断言(含祖先/排除下游 goal/排除无关意图)

go build / db / server 测试通过。

web/src/app/(main)/function/findings/detail/lineage.tsx

@@ -0,0 +1,218 @@
+"use client";
+
+import * as React from "react";
+import {
+  BugIcon,
+  CompassIcon,
+  FlagIcon,
+  FlaskConicalIcon,
+  LightbulbIcon,
+  type LucideIcon,
+  MapPinIcon,
+  CornerDownRightIcon,
+} from "lucide-react";
+
+import { cn } from "@/lib/utils";
+import { api } from "@/lib/api";
+import type { Edge, ExploreKind, TaskNode } from "@/lib/types";
+
+// viewKind renders the task-root fact (origin) as a distinct "起点".
+type ViewKind = ExploreKind | "begin";
+function viewKind(n: TaskNode): ViewKind {
+  return n.type === "fact" && n.state === "origin" ? "begin" : n.type;
+}
+
+const KIND_META: Record<ViewKind, { label: string; icon: LucideIcon; cls: string }> = {
+  begin: { label: "起点", icon: MapPinIcon, cls: "text-slate-500 border-slate-500/30 bg-slate-500/10" },
+  task: { label: "任务", icon: MapPinIcon, cls: "text-slate-500 border-slate-500/30 bg-slate-500/10" },
+  goal: { label: "目标", icon: FlagIcon, cls: "text-violet-600 border-violet-500/30 bg-violet-500/10 dark:text-violet-400" },
+  intent: { label: "意图", icon: CompassIcon, cls: "text-blue-600 border-blue-500/30 bg-blue-500/10 dark:text-blue-400" },
+  fact: { label: "事实", icon: FlaskConicalIcon, cls: "text-amber-600 border-amber-500/30 bg-amber-500/10 dark:text-amber-400" },
+  finding: { label: "漏洞", icon: BugIcon, cls: "text-rose-600 border-rose-500/30 bg-rose-500/10 dark:text-rose-400" },
+  hint: { label: "提示", icon: LightbulbIcon, cls: "text-emerald-600 border-emerald-500/30 bg-emerald-500/10 dark:text-emerald-400" },
+};
+
+const REL_LABEL: Record<string, string> = {
+  spawns: "派生",
+  derived_from: "意图链",
+  yields: "产出",
+  proves: "证明",
+};
+
+const SUMMARY_FIELDS: Record<ViewKind, string[]> = {
+  task: ["summary", "description"],
+  begin: ["summary", "description"],
+  goal: ["text"],
+  hint: ["text"],
+  intent: ["summary"],
+  fact: ["summary"],
+  finding: ["name", "summary"],
+};
+
+// nodeSummary pulls the display text out of the node's JSON payload.
+function nodeSummary(n: TaskNode): string {
+  const raw = n.payload ?? "";
+  const fields = SUMMARY_FIELDS[viewKind(n)] ?? [];
+  if (fields.length && raw.trim()) {
+    try {
+      const obj: unknown = JSON.parse(raw);
+      if (obj && typeof obj === "object") {
+        for (const f of fields) {
+          const v = (obj as Record<string, unknown>)[f];
+          if (typeof v === "string" && v.trim()) return v;
+        }
+      }
+    } catch {
+      /* 非 JSON：原样显示 */
+    }
+  }
+  return raw || "（无内容）";
+}
+
+// orderByDepth topologically layers the lineage nodes by their longest distance
+// from a root (a node with no incoming edge inside the set), so the chain renders
+// origin → … → finding top-down. Cycle-safe (caps iterations).
+function orderByDepth(nodes: TaskNode[], edges: Edge[]): TaskNode[] {
+  const ids = new Set(nodes.map((n) => n.id));
+  const parents = new Map<string, string[]>();
+  for (const e of edges) {
+    if (ids.has(e.src) && ids.has(e.dst)) {
+      parents.set(e.dst, [...(parents.get(e.dst) ?? []), e.src]);
+    }
+  }
+  const depth = new Map<string, number>();
+  const visiting = new Set<string>();
+  const calc = (id: string): number => {
+    const cached = depth.get(id);
+    if (cached !== undefined) return cached;
+    if (visiting.has(id)) return 0; // 回边：不再深入
+    visiting.add(id);
+    const ps = parents.get(id) ?? [];
+    const d = ps.length === 0 ? 0 : 1 + Math.max(...ps.map(calc));
+    visiting.delete(id);
+    depth.set(id, d);
+    return d;
+  };
+  return [...nodes].sort((a, b) => {
+    const d = calc(a.id) - calc(b.id);
+    return d !== 0 ? d : Number(a.id) - Number(b.id);
+  });
+}
+
+export function FindingLineageView({ findingId }: { findingId: string }) {
+  const [nodes, setNodes] = React.useState<TaskNode[]>([]);
+  const [edges, setEdges] = React.useState<Edge[]>([]);
+  const [loaded, setLoaded] = React.useState(false);
+
+  React.useEffect(() => {
+    let alive = true;
+    api
+      .findingLineage(findingId)
+      .then((g) => {
+        if (!alive) return;
+        setNodes(g.nodes);
+        setEdges(g.edges);
+      })
+      .catch(() => {})
+      .finally(() => {
+        if (alive) setLoaded(true);
+      });
+    return () => {
+      alive = false;
+    };
+  }, [findingId]);
+
+  const ordered = React.useMemo(() => orderByDepth(nodes, edges), [nodes, edges]);
+  const byId = React.useMemo(() => new Map(nodes.map((n) => [n.id, n])), [nodes]);
+  // 每个节点的入边(父节点 + 关系),用于在卡片上方标注"从哪来、什么关系"。
+  const incoming = React.useMemo(() => {
+    const m = new Map<string, { from: string; rel: string }[]>();
+    const ids = new Set(nodes.map((n) => n.id));
+    for (const e of edges) {
+      if (ids.has(e.src) && ids.has(e.dst)) {
+        m.set(e.dst, [...(m.get(e.dst) ?? []), { from: e.src, rel: e.rel }]);
+      }
+    }
+    return m;
+  }, [nodes, edges]);
+
+  if (!loaded) {
+    return <p className="text-muted-foreground p-6 text-sm">加载中…</p>;
+  }
+  if (nodes.length === 0) {
+    return (
+      <p className="text-muted-foreground p-6 text-sm">
+        无链路可展示（该漏洞未关联探索节点，或所属任务已删除）。
+      </p>
+    );
+  }
+
+  return (
+    <div className="flex flex-col gap-0">
+      <p className="text-muted-foreground mb-3 text-xs">
+        从任务初始节点回溯到本漏洞节点的探索链路（共 {nodes.length} 个节点）。
+      </p>
+      {ordered.map((n, i) => {
+        const vk = viewKind(n);
+        const meta = KIND_META[vk] ?? KIND_META.fact;
+        const Icon = meta.icon;
+        const isFinding = vk === "finding";
+        const ins = incoming.get(n.id) ?? [];
+        return (
+          <div key={n.id} className="flex flex-col">
+            {/* 入边关系(除根外)：从哪个父节点、什么关系而来 */}
+            {i > 0 && ins.length > 0 && (
+              <div className="text-muted-foreground ml-4 flex flex-col gap-0.5 border-l-2 py-1.5 pl-4 text-xs">
+                {ins.map((e, k) => {
+                  const parent = byId.get(e.from);
+                  const pKind = parent ? viewKind(parent) : "fact";
+                  return (
+                    <div key={`${e.from}-${e.rel}-${k}`} className="flex items-center gap-1">
+                      <CornerDownRightIcon className="size-3 shrink-0" />
+                      <span className="rounded bg-muted px-1 py-0.5 font-medium">
+                        {REL_LABEL[e.rel] ?? e.rel}
+                      </span>
+                      <span className="truncate">
+                        来自 {KIND_META[pKind]?.label ?? pKind}
+                        {parent && (
+                          <span className="opacity-70"> · {nodeSummary(parent).slice(0, 40)}</span>
+                        )}
+                      </span>
+                    </div>
+                  );
+                })}
+              </div>
+            )}
+            {/* 节点卡片 */}
+            <div
+              className={cn(
+                "rounded-md border p-3",
+                isFinding ? "border-rose-500/60 bg-rose-500/5 ring-1 ring-rose-500/30" : "bg-card",
+              )}
+            >
+              <div className="flex items-center gap-2">
+                <span
+                  className={cn(
+                    "inline-flex shrink-0 items-center gap-1 rounded border px-1.5 py-0.5 text-xs font-medium",
+                    meta.cls,
+                  )}
+                >
+                  <Icon className="size-3" />
+                  {meta.label}
+                </span>
+                {n.state && n.state !== "origin" && (
+                  <span className="text-muted-foreground text-[10px] uppercase">{n.state}</span>
+                )}
+                {isFinding && (
+                  <span className="text-rose-600 dark:text-rose-400 text-xs font-medium">← 本漏洞</span>
+                )}
+                <span className="text-muted-foreground ml-auto font-mono text-[10px]">#{n.id}</span>
+              </div>
+              <p className="mt-1.5 text-sm whitespace-pre-wrap">{nodeSummary(n)}</p>
+            </div>
+          </div>
+        );
+      })}
+    </div>
+  );
+}

web/src/app/(main)/function/findings/detail/page.tsx

@@ -19,6 +19,7 @@ import {
 } from "@/components/ui/select";
 import { StatusBadge } from "@/components/status-badge";
 import { Markdown } from "@/components/markdown";
+import { FindingLineageView } from "./lineage";
 import { statusMeta } from "@/lib/status";
 import { api } from "@/lib/api";
 import type { Finding, FindingStatus, Severity } from "@/lib/types";
@@ -162,8 +163,7 @@ function FindingDetailInner() {
         </div>
         <TabsList>
           <TabsTrigger value="overview">概览</TabsTrigger>
-          <TabsTrigger value="evidence">证据 / PoC</TabsTrigger>
-          <TabsTrigger value="meta">元数据</TabsTrigger>
+          <TabsTrigger value="lineage">链路图</TabsTrigger>
         </TabsList>
       </header>
 
@@ -221,6 +221,13 @@ function FindingDetailInner() {
                 <CardTitle className="text-sm">状态</CardTitle>
               </CardHeader>
               <CardContent className="divide-y">
+                {/* 漏洞 ID */}
+                <FieldRow label="漏洞 ID">
+                  <code className="rounded bg-muted px-1.5 py-0.5 font-mono text-xs text-muted-foreground">
+                    #{finding.id}
+                  </code>
+                </FieldRow>
+
                 {/* 严重等级（可改） */}
                 <FieldRow label="严重等级">
                   <Select
@@ -322,42 +329,11 @@ function FindingDetailInner() {
           </div>
         </TabsContent>
 
-        {/* 证据全文 */}
-        <TabsContent value="evidence" className="mt-0">
+        {/* 链路图：从任务初始节点回溯到本漏洞节点的探索链路 */}
+        <TabsContent value="lineage" className="mt-0">
           <Card>
             <CardContent className="pt-6">
-              {finding.evidence ? (
-                <pre className="overflow-auto rounded-md bg-muted px-3 py-2 font-mono text-xs whitespace-pre-wrap">
-                  {finding.evidence}
-                </pre>
-              ) : (
-                <p className="text-sm text-muted-foreground">本发现暂无证据文本。</p>
-              )}
-            </CardContent>
-          </Card>
-        </TabsContent>
-
-        {/* 元数据 */}
-        <TabsContent value="meta" className="mt-0">
-          <Card>
-            <CardContent className="pt-6">
-              <dl className="grid grid-cols-1 gap-x-8 gap-y-3 text-sm sm:grid-cols-2">
-                {[
-                  ["发现 ID", finding.id],
-                  ["漏洞名称", finding.name || "（空，回退漏洞类型）"],
-                  ["漏洞类型", finding.vulnclass || "—"],
-                  ["严重等级", statusMeta("severity", finding.severity).label],
-                  ["处理状态", statusMeta("finding", finding.status).label],
-                  ["所属任务", finding.task_description || finding.task_id || "—"],
-                  ["涉及资产数", String(finding.assets?.length ?? 0)],
-                  ["发现时间", fmtTime(finding.ts)],
-                ].map(([k, v]) => (
-                  <div key={k} className="flex flex-col gap-0.5">
-                    <dt className="text-xs text-muted-foreground">{k}</dt>
-                    <dd className="break-all">{v}</dd>
-                  </div>
-                ))}
-              </dl>
+              <FindingLineageView findingId={finding.id} />
             </CardContent>
           </Card>
         </TabsContent>

web/src/lib/api.ts

@@ -241,11 +241,15 @@ export const api = {
     if (q.severity && q.severity !== "all") p.set("severity", q.severity);
     if (q.status && q.status !== "all") p.set("status", q.status);
     if (q.vulnclass && q.vulnclass !== "all") p.set("vulnclass", q.vulnclass);
+    if (q.task && q.task !== "all") p.set("task_id", q.task);
     if (q.sort) p.set("sort", q.sort);
     return get<FindingsPage>(`/exploration/findings?${p.toString()}`);
   },
   findingStats: () => get<FindingStats>("/exploration/findings/stats"),
   getFinding: (id: string) => get<Finding>(`/exploration/findings/${id}`),
+  // 漏洞链路:该漏洞节点回溯到任务初始节点的子图(节点 + 关系)。
+  findingLineage: (id: string) =>
+    get<{ nodes: TaskNode[]; edges: Edge[] }>(`/exploration/findings/${id}/lineage`),
   setFindingStatus: (id: string, status: FindingStatus) =>
     patch<Finding>(`/exploration/findings/${id}`, { status }),
   setFindingSeverity: (id: string, severity: Severity) =>