feat(session): add cross-session references

webui/src/lib/nanobot-client.ts

@@ -5,6 +5,7 @@ import type {
   OutboundCliAppMention,
   OutboundMcpPresetMention,
   OutboundMedia,
+  SessionMention,
   GoalStateWsPayload,
   WorkspaceScopePayload,
 } from "./types";
@@ -804,6 +805,7 @@ export class NanobotClient {
     options?: {
       cliApps?: OutboundCliAppMention[];
       mcpPresets?: OutboundMcpPresetMention[];
+      sessionMentions?: SessionMention[];
       quotedContext?: string;
       workspaceScope?: WorkspaceScopePayload | null;
       turnId?: string;
@@ -819,6 +821,9 @@ export class NanobotClient {
       ...(media && media.length > 0 ? { media } : {}),
       ...(options?.cliApps?.length ? { cli_apps: options.cliApps } : {}),
       ...(options?.mcpPresets?.length ? { mcp_presets: options.mcpPresets } : {}),
+      ...(options?.sessionMentions?.length
+        ? { session_mentions: options.sessionMentions }
+        : {}),
       ...(options?.quotedContext?.trim() ? { quoted_context: options.quotedContext.trim() } : {}),
       ...(options?.workspaceScope ? { workspace_scope: options.workspaceScope } : {}),
       ...(options?.turnId ? { turn_id: options.turnId } : {}),

webui/src/lib/types.ts

@@ -64,6 +64,8 @@ export interface UIMessage {
   cliApps?: UICliAppAttachment[];
   /** Settings-managed MCP presets explicitly attached to this user turn. */
   mcpPresets?: UIMcpPresetAttachment[];
+  /** Persisted sessions explicitly referenced by this user turn. */
+  sessionMentions?: SessionMention[];
   /** Assistant turn: accumulated model reasoning / thinking text. Built up
    * incrementally from ``reasoning_delta`` frames; finalized when
    * ``reasoning_end`` arrives. */
@@ -107,6 +109,14 @@ export interface UIMcpPresetAttachment {
   brand_color?: string | null;
 }
 
+export interface SessionMention {
+  /** Text token inserted in the composer, without the leading @. */
+  name: string;
+  /** Stable persisted-session identifier used by read_session. */
+  session_key: string;
+  title: string;
+}
+
 export interface SessionAutomationJob {
   id: string;
   name: string;
@@ -1338,6 +1348,7 @@ export type Outbound =
       media?: OutboundMedia[];
       cli_apps?: OutboundCliAppMention[];
       mcp_presets?: OutboundMcpPresetMention[];
+      session_mentions?: SessionMention[];
       quoted_context?: string;
       workspace_scope?: WorkspaceScopePayload;
       turn_id?: string;