fix: 修复发现返回导航(#34)与情报内容搜索及查看对话(#38)

- #34: 任务发现页进入漏洞报告详情后，「←返回」回到该任务的发现页
  (/function/tasks/detail?id=<task>&tab=findings)，而非全局发现列表。
  任务自身的 FindingCaseList 与原始上报列表「详情」链接均携带 context_task。
- #38: 情报搜索除标题/上报者外，同时匹配内容(content)与来源证据(evidence)。
- #38: 修复「查看对话」点击无反应：任务详情页标签切换同步写入 URL 的 tab 参数，
  使跳转 tab=sessions&session=... 时能正确切换到会话并打开对应会话。

Closes #34
Closes #38

db/intelligence.go

@@ -260,8 +260,8 @@ func (d *DB) ListIntelligence(ctx context.Context, f IntelligenceFilter) (*Intel
 	if err != nil {
 		return nil, err
 	}
-	// Search titles and reporters; return the recorded content directly in each row.
-	where := scope + ` AND ($3='' OR kind=$3) AND ($4='' OR i.status=$4) AND ($5='' OR i.title ILIKE '%'||$5||'%' OR i.worker ILIKE '%'||$5||'%')`
+	// Search titles, content, evidence, and reporters; return the recorded content directly in each row.
+	where := scope + ` AND ($3='' OR kind=$3) AND ($4='' OR i.status=$4) AND ($5='' OR i.title ILIKE '%'||$5||'%' OR i.content ILIKE '%'||$5||'%' OR i.evidence ILIKE '%'||$5||'%' OR i.worker ILIKE '%'||$5||'%')`
 	args = append(args, f.Kind, f.Status, f.Query)
 	if err = d.QueryRowContext(ctx, `SELECT count(*)`+where, args...).Scan(&page.Total); err != nil {
 		return nil, err

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

@@ -58,6 +58,7 @@ function FindingDetailInner() {
   const searchParams = useSearchParams();
   const id = searchParams.get("id") ?? "";
   const contextTaskId = searchParams.get("context_task") ?? "";
+  const backHref = contextTaskId ? `/function/tasks/detail?id=${contextTaskId}&tab=findings` : "/function/findings";
   const [finding, setFinding] = React.useState<Finding | null>(null);
   const [loaded, setLoaded] = React.useState(false);
   const [tab, setTab] = React.useState("overview");
@@ -117,7 +118,7 @@ function FindingDetailInner() {
         <p className="text-muted-foreground">{loaded ? `未找到发现 ${id}` : "加载中…"}</p>
         {loaded && (
           <Button asChild variant="outline">
-            <Link href="/function/findings">
+            <Link href={backHref}>
               <ArrowLeftIcon /> 返回发现列表
             </Link>
           </Button>
@@ -135,7 +136,7 @@ function FindingDetailInner() {
         <div className="flex flex-wrap items-center gap-2">
           <SidebarTrigger className="-ml-1" />
           <Button asChild variant="ghost" size="icon" className="size-7">
-            <Link href="/function/findings">
+            <Link href={backHref}>
               <ArrowLeftIcon />
             </Link>
           </Button>

web/src/app/(main)/function/tasks/detail/_tabs/findings-tab.tsx

@@ -113,11 +113,7 @@ function Row({
         </span>
         {f.finding_id && (
           <Link
-            href={
-              f.inherited
-                ? `/function/findings/detail?id=${f.finding_id}&context_task=${contextTaskId}`
-                : `/function/findings/detail?id=${f.finding_id}`
-            }
+            href={`/function/findings/detail?id=${f.finding_id}&context_task=${contextTaskId}`}
             className="text-muted-foreground hover:text-primary inline-flex shrink-0 items-center gap-0.5 text-xs"
             title="查看漏洞详情"
           >
@@ -190,7 +186,7 @@ export function FindingsTab({ taskId }: { taskId: string }) {
 
   return (
     <div className="flex flex-col gap-4">
-      <FindingCaseList query={{ task: taskId, sort: "time" }} />
+      <FindingCaseList query={{ task: taskId, sort: "time" }} contextTask={taskId} />
       {[
         ...new Set(
           items

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

@@ -354,7 +354,17 @@ function TaskDetailInner() {
   );
 
   return (
-    <Tabs value={tab} onValueChange={setTab} className="flex flex-1 flex-col gap-0">
+    <Tabs
+      value={tab}
+      onValueChange={(value) => {
+        setTab(value);
+        const params = new URLSearchParams(searchParams.toString());
+        params.set("tab", value);
+        params.delete("session");
+        router.replace(`/function/tasks/detail?${params.toString()}`, { scroll: false });
+      }}
+      className="flex flex-1 flex-col gap-0"
+    >
       {/* Top fixed area */}
       <header className="sticky top-0 z-10 flex flex-col gap-2 border-b bg-background/95 px-4 py-2.5 backdrop-blur lg:px-6">
         <div className="flex items-center gap-2">

web/src/components/intelligence-panel.tsx

@@ -193,8 +193,8 @@ export function IntelligencePanel({
           </Tabs>
           <div className="flex flex-wrap items-center gap-2">
             <Input
-              aria-label="搜索情报标题或上报者"
-              placeholder="搜索标题或上报者"
+              aria-label="搜索情报标题、内容或上报者"
+              placeholder="搜索标题、内容或上报者"
               value={search}
               maxLength={200}
               onChange={(e) => setSearch(e.target.value)}