feat(coding): add PI-105 product file host API

electron/main/index.ts

@@ -95,6 +95,10 @@ import {
 } from '../image-workspace/local-workspace';
 import { WorksSquareDesignWorkspace } from '../image-workspace/works-square-workspace';
 import type { DesignWorkspaceModule } from '../image-workspace/module';
+import { CodingAttachmentStore } from '../coding-projects/attachment-store';
+import { PiProductTools } from '../coding-runtime/pi/product-tools';
+import { resolveBundledCodingSkillsDir } from '../coding-runtime/pi/resource-loader';
+import { createCodingProductHost } from '../api/coding-product-services';
 
 // Diagnostic package: force Chromium networking onto HTTP/1.1 for transport A/B testing.
 app.commandLine.appendSwitch('disable-http2');
@@ -549,6 +553,29 @@ async function initialize(): Promise<void> {
       window.webContents.send('release-job:status', status);
     }
   });
+  const codingAttachments = new CodingAttachmentStore(
+    join(app.getPath('userData'), 'coding-runtime', 'attachments'),
+  );
+  const piProductTools = new PiProductTools({
+    browser: agentBrowser,
+    attachments: codingAttachments,
+    bundledSkillsDir: resolveBundledCodingSkillsDir({
+      isPackaged: app.isPackaged,
+      resourcesPath: process.resourcesPath,
+      appPath: app.getAppPath(),
+    }),
+  });
+  const codingProducts = {
+    attachments: codingAttachments,
+    productTools: piProductTools,
+    host: createCodingProductHost({
+      productTools: piProductTools,
+      getActiveProject: async () => {
+        const project = await opencodeProjectStore.getActiveProject();
+        return project ? { id: project.id, path: project.path } : null;
+      },
+    }),
+  };
   const hostApiContext: HostApiContext = {
     opencodeManager,
     opencodeProjectStore,
@@ -559,6 +586,7 @@ async function initialize(): Promise<void> {
     imageWorkspace,
     lifecycle: backgroundLifecycle,
     releaseJobs,
+    codingProducts,
   };
   registerIpcHandlers(undefined, opencodeManager, undefined, window, backgroundLifecycle, hostApiContext);