feat: let agents read supervisor story graphs

Expose saved decisions, timelines and source evidence through read-only Story Graph tools across Model, Harness and local/remote OpenCode and Continue. Supervisor enablement and runtime assignments govern discovery and calls; reads do not invoke models or modify stored evidence. Remote use requires matching Desktop and Agent changes.

Make Continue discussion show the complete editable message with a separated destination and shared action layout. Sending uses the visible draft without reattaching removed context.

Validation: existing focused MCP, runtime, controlled Linux Host, discussion component and Electron layout checks plus typechecks; staged diff check passed. Cross-scope fact reuse, historical reconstruction and full package acceptance remain deferred.

Release note: Agents can consult saved supervisor decisions and their sources when continuing work. Continue discussion now lets you review and edit the complete message before sending.

src/main/agent/acp-remote-runtime.ts

@@ -1188,8 +1188,8 @@ export class AcpRemoteRuntime implements AgentRuntime {
       raw = await this.awaitOperation(
         context,
         '启动远端请求',
-        request.imageToolBinding
-          ? context.channel.preparePrompt(preparation, request.imageToolBinding, signal)
+        request.imageToolBinding || request.storyGraphBinding
+          ? context.channel.preparePrompt(preparation, request.imageToolBinding, signal, request.storyGraphBinding)
           : context.channel.preparePrompt(preparation),
         signal
       )