Fix Google Calendar consent never starting

app/src/client/pages/AppsPage.tsx

@@ -1,4 +1,4 @@
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import {
   PI_APPS,
   type AppKey,
@@ -19,6 +19,13 @@ export function AppsPage({
   const desk = useDesk(settings);
   const [saving, setSaving] = useState(false);
 
+  // Reconcile connections on arrival so statuses and any pending Google
+  // consent link are current, not left over from the last visit.
+  useEffect(() => {
+    void desk.ensureSetup().catch(() => {});
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [desk.settingsHash]);
+
   async function apply(next: PiSettings) {
     savePrefs(identity.netid, { apps: next.apps, model: next.model });
     setSaving(true);

app/src/server/pi.ts

@@ -167,6 +167,15 @@ export class Pi extends Think<Env, PiState> {
           });
           if (result.state === "authenticating") {
             authUrls.gcal = result.authUrl;
+          } else if (this.isDesk() && !(await this.gcalTokensHas())) {
+            // Google's MCP server answers initialize and tools/list
+            // anonymously, so the connection lands "ready" without ever
+            // triggering OAuth — the 401 only appears on a real tool call.
+            // Force one so the SDK starts the authorization leg, then
+            // surface the consent URL it produced.
+            const url = await this.forceGcalConsent();
+            if (url) authUrls.gcal = url;
+            else appErrors.gcal = "couldn't start Google sign-in — try again";
           }
           continue;
         }
@@ -226,6 +235,44 @@ export class Pi extends Think<Env, PiState> {
     return { ok: true as const, count: messages.length };
   }
 
+  /**
+   * Kick Google's MCP server with a cheap authenticated-only call so the
+   * transport's OAuth machinery runs (discovery, state, PKCE) and hands us
+   * a consent URL. Returns null if calendar access unexpectedly works
+   * already or no URL could be produced.
+   */
+  private async forceGcalConsent(): Promise<string | null> {
+    try {
+      await this.mcp.callTool({
+        serverId: "gcal",
+        name: "list_calendars",
+        arguments: {},
+      });
+      return null; // already authorized somehow — nothing to do
+    } catch {
+      // Expected: 401 → the transport started the authorization flow.
+    }
+    // The live connection's provider holds the freshly built consent URL.
+    const manager = this.mcp as unknown as {
+      mcpConnections?: Record<
+        string,
+        { options?: { transport?: { authProvider?: { authUrl?: string } } } }
+      >;
+    };
+    const live =
+      manager.mcpConnections?.gcal?.options?.transport?.authProvider?.authUrl;
+    if (live) return live;
+    // Fallback: re-registering an existing server redeems a stored auth URL.
+    const retry = await this.addMcpServer("Google Calendar", GCAL_MCP_URL, {
+      id: "gcal",
+      callbackHost: this.appOrigin(),
+      callbackPath: GCAL_CALLBACK_PATH.slice(1),
+      transport: { type: "streamable-http" },
+    });
+    if (retry.state === "authenticating") return retry.authUrl;
+    return this.getMcpServers().servers.gcal?.auth_url ?? null;
+  }
+
   /** The per-user desk instance is the token authority for Google OAuth. */
   private isDesk(): boolean {
     return this.name.endsWith("-desk");