fix: improve conversation and report stability

server/im_http.go

@@ -68,6 +68,7 @@ const (
 	imQRCodeMaxExpiresInSeconds      = 7 * 86400
 	imPublicUploadMaxBytes           = 10 << 20
 	groupMaxAdminCount               = 10
+	monthlyReportPreviewMaxRunes     = 120
 )
 
 type imHTTPResponse struct {
@@ -7206,14 +7207,16 @@ func monthlyReportListPayload(report types.MonthlyReport) map[string]any {
 		action = "edit"
 	}
 	data := map[string]any{
-		"report_id":  report.ReportID,
-		"author_id":  report.AuthorID.UserId(),
-		"month":      report.Month,
-		"status":     report.Status,
-		"read_state": report.ReadState,
-		"version":    report.Version,
-		"action":     action,
-		"updated_at": report.UpdatedAt.UTC().Format(time.RFC3339Nano),
+		"report_id":          report.ReportID,
+		"author_id":          report.AuthorID.UserId(),
+		"month":              report.Month,
+		"work_summary_short": monthlyReportPreview(report.WorkSummary),
+		"next_plan_short":    monthlyReportPreview(report.NextPlan),
+		"status":             report.Status,
+		"read_state":         report.ReadState,
+		"version":            report.Version,
+		"action":             action,
+		"updated_at":         report.UpdatedAt.UTC().Format(time.RFC3339Nano),
 	}
 	if report.SubmittedAt != nil {
 		data["submitted_at"] = report.SubmittedAt.UTC().Format(time.RFC3339Nano)
@@ -7221,6 +7224,15 @@ func monthlyReportListPayload(report types.MonthlyReport) map[string]any {
 	return data
 }
 
+func monthlyReportPreview(text string) string {
+	text = strings.Join(strings.Fields(text), " ")
+	runes := []rune(text)
+	if len(runes) <= monthlyReportPreviewMaxRunes {
+		return text
+	}
+	return string(runes[:monthlyReportPreviewMaxRunes]) + "..."
+}
+
 func monthlyReportDetailPayload(report *types.MonthlyReport, viewer types.Uid) map[string]any {
 	data := monthlyReportListPayload(*report)
 	data["work_summary"] = report.WorkSummary