fix(chat): make cloud the only truth for charts, synastry, and pin/archive

Local fallbacks were creating fake saves and resurrecting deleted rows.
Pin and archive now live on chat_sessions so they follow the account.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/lib/chart-library-session.ts

@@ -9,14 +9,17 @@ export function chartLibrarySessionBranch(
   return "persist-self";
 }
 
-export function chartLibraryFromCloudOthers<T extends { role: "self" | "other" }>(
+export function chartLibraryFromCloudOthers<T extends { role: "self" | "other" }, P>(
   cloudLibrary: readonly T[],
-  profile: unknown,
-  upsertSelfChart: (library: T[], profile: unknown) => T[],
+  profile: P,
+  upsertSelfChart: (library: T[], profile: P) => T[],
 ): T[] {
   return upsertSelfChart(cloudLibrary.filter((record) => record.role !== "self"), profile);
 }
 
-export function keepLocalChartLibraryOnCloudFailure<T>(localLibrary: T): T {
-  return localLibrary;
+export function chartLibraryOnCloudFailure<T, P>(
+  profile: P,
+  upsertSelfChart: (library: T[], profile: P) => T[],
+): T[] {
+  return upsertSelfChart([], profile);
 }

frontend/src/lib/chat-notice.ts

@@ -10,7 +10,7 @@ export type ChatNoticeAction = Readonly<{
 }>;
 
 const ongoingNotice = /正在|请稍候|请先|联网后/;
-const failedNotice = /失败|无法|不可用|未找到|已写满|已被删除/;
+const failedNotice = /失败|无法|不可用|未能|未找到|已写满|已被删除/;
 const settledNotice = /^已|^回答已恢复/;
 
 export function noticeTone(message: string): NoticeTone {

frontend/src/lib/chat-session-write-contract.ts

@@ -37,6 +37,8 @@ export const chatSessionMetadataPatchSchema = z.object({
   title: z.string().trim().min(1).max(160).optional(),
   theme: consultationDomainSchema.optional(),
   model_id: z.string().trim().min(1).max(64).optional(),
+  pinned: z.boolean().optional(),
+  archived_at: z.string().datetime().nullable().optional(),
   ...chartBindingSchema,
 }).strict().refine(
   (value) => Object.values(value).some((field) => field !== undefined),
@@ -123,6 +125,8 @@ export function extractChatSessionMetadataPatch(payload: unknown): unknown {
   if ("chart_profile_id" in record) patch.chart_profile_id = record.chart_profile_id;
   if ("chart_profile_name" in record) patch.chart_profile_name = record.chart_profile_name;
   if ("chart_profile_role" in record) patch.chart_profile_role = record.chart_profile_role;
+  if ("pinned" in record) patch.pinned = record.pinned;
+  if ("archived_at" in record) patch.archived_at = record.archived_at;
   return patch;
 }
 
@@ -130,6 +134,8 @@ export type ChatSessionMetadataPatch = Readonly<{
   title?: string;
   theme?: ConsultationDomain;
   model_id?: string;
+  pinned?: boolean;
+  archived_at?: string | null;
   chart_profile_id?: string | null;
   chart_profile_name?: string | null;
   chart_profile_role?: "self" | "other" | null;