fix(web): 四个页面共用一份会话列表，空会话不入列

对话、星盘、星历、报告进同一 (app) 外壳，列表只拉一次。服务端不再列出空咨询；新建复用已有空会话。新标题改成「生时校正 · M月D日」，侧栏副标题用创建时间。

frontend/src/app/api/sessions/route.ts

@@ -16,8 +16,15 @@ import {
   parseSessionCursor,
   sessionCursorFilter,
 } from "@/lib/session-cursor";
+const SESSION_LIST_COLUMNS = "id,title,theme,model_id,session_type,rectification_case_id,chart_profile_id,chart_profile_name,chart_profile_role,created_at,updated_at,pinned,archived_at";
 
-const SESSION_LIST_COLUMNS = "id,title,theme,model_id,session_type,rectification_case_id,chart_profile_id,chart_profile_name,chart_profile_role,updated_at,pinned,archived_at";
+function excludeEmptyConsultations<Query extends {
+  not: (column: string, operator: string, value: unknown) => Query;
+}>(query: Query): Query {
+  // Empty consultations are `messages = []`. Rectification rows keep an opening
+  // turn, so excluding empty arrays leaves them in the list (BUG-928).
+  return query.not("messages", "eq", []);
+}
 
 function applyArchiveFilter<Query extends {
   is: (column: string, value: null) => Query;
@@ -40,13 +47,15 @@ export async function GET(request: Request) {
     const { data: { user }, error: authError } = await supabase.auth.getUser();
     if (authError || !user) return NextResponse.json({ error: "请先登录" }, { status: 401 });
 
-    let pageQuery = applyArchiveFilter(
-      supabase
-        .from("chat_sessions")
-        .select(SESSION_LIST_COLUMNS)
-        .eq("user_id", user.id)
-        .eq("pinned", false),
-      archived,
+    let pageQuery = excludeEmptyConsultations(
+      applyArchiveFilter(
+        supabase
+          .from("chat_sessions")
+          .select(SESSION_LIST_COLUMNS)
+          .eq("user_id", user.id)
+          .eq("pinned", false),
+        archived,
+      ),
     )
       .order("updated_at", { ascending: false })
       .order("id", { ascending: false })
@@ -58,25 +67,42 @@ export async function GET(request: Request) {
     if (pageError) return NextResponse.json({ error: "聊天记录暂时无法读取" }, { status: 500 });
 
     let pinnedRows: typeof pageRows = [];
+    let draft: NonNullable<typeof pageRows>[number] | null = null;
     if (!cursor) {
-      const { data: pinnedData, error: pinnedError } = await applyArchiveFilter(
-        supabase
-          .from("chat_sessions")
-          .select(SESSION_LIST_COLUMNS)
-          .eq("user_id", user.id)
-          .eq("pinned", true),
-        archived,
+      const { data: pinnedData, error: pinnedError } = await excludeEmptyConsultations(
+        applyArchiveFilter(
+          supabase
+            .from("chat_sessions")
+            .select(SESSION_LIST_COLUMNS)
+            .eq("user_id", user.id)
+            .eq("pinned", true),
+          archived,
+        ),
       )
         .order("updated_at", { ascending: false })
         .order("id", { ascending: false });
       if (pinnedError) return NextResponse.json({ error: "聊天记录暂时无法读取" }, { status: 500 });
       pinnedRows = pinnedData ?? [];
+      if (!archived) {
+        const { data: draftData, error: draftError } = await supabase
+          .from("chat_sessions")
+          .select(SESSION_LIST_COLUMNS)
+          .eq("user_id", user.id)
+          .eq("session_type", "consultation")
+          .eq("messages", [])
+          .is("archived_at", null)
+          .order("updated_at", { ascending: false })
+          .order("id", { ascending: false })
+          .limit(1);
+        if (draftError) return NextResponse.json({ error: "聊天记录暂时无法读取" }, { status: 500 });
+        draft = draftData?.[0] ?? null;
+      }
     }
 
     const nextCursor = nextSessionCursor(pageRows ?? [], limit);
     const page = (pageRows ?? []).slice(0, limit);
     const sessions = cursor ? page : [...(pinnedRows ?? []), ...page];
-    return NextResponse.json({ sessions, nextCursor });
+    return NextResponse.json({ sessions, nextCursor, draft });
   } catch (error) {
     if (isSupabaseConfigurationError(error)) {
       return NextResponse.json({ error: "数据库尚未配置", code: "DATABASE_NOT_CONFIGURED" }, { status: 503 });