fix(coding): close PI-100 review findings

electron/api/coding-composition.ts

@@ -25,7 +25,12 @@ import { createPiManagedSubagentChildOpener } from '../coding-runtime/pi/subagen
 import { PiSubagentScheduler } from '../coding-runtime/pi/subagent';
 import { PiProcessBudget, PiWorkerPool } from '../coding-runtime/pi/worker-pool';
 import { getProviderService } from '../services/providers/provider-service';
+import {
+  isCodingProviderAuthenticationError,
+  refreshCodingProviderCredential,
+} from './coding-provider-auth';
 import { createCodingProductHost, type CodingProductComposition } from './coding-product-services';
+import { archivePiConversationSession } from '../coding-runtime/pi/resource-loader';
 
 export interface CodingCompositionPaths {
   executablePath: string;
@@ -128,6 +133,8 @@ export function createCodingComposition(
       buildPiProviderCatalog(await loadProviderInput()),
       model,
     ),
+    isAuthenticationError: isCodingProviderAuthenticationError,
+    refreshCredential: refreshCodingProviderCredential,
     resolveImages: async (refs) => await Promise.all(refs.map(async ({ attachmentId }) => {
       const record = await attachments.read(attachmentId);
       return {
@@ -155,7 +162,15 @@ export function createCodingComposition(
       ]);
     },
   });
-  const conversations = new CodingConversationService(projects, runtime);
+  const conversations = new CodingConversationService(projects, runtime, {
+    archiveSession: async ({ projectId, sessionKey }) => {
+      await archivePiConversationSession({
+        userDataDir: options.paths.userDataDir,
+        projectId,
+        sessionKey,
+      });
+    },
+  });
   const host = createCodingProductHost({
     projects,
     productTools,