feat(ui): improve startup warnings UX with dismissal and show-count limits (#19584)

packages/cli/src/gemini.tsx

@@ -11,6 +11,7 @@ import { loadCliConfig, parseArguments } from './config/config.js';
 import * as cliConfig from './config/config.js';
 import { readStdin } from './utils/readStdin.js';
 import { basename } from 'node:path';
+import { createHash } from 'node:crypto';
 import v8 from 'node:v8';
 import os from 'node:os';
 import dns from 'node:dns';
@@ -37,6 +38,8 @@ import {
   cleanupExpiredSessions,
 } from './utils/sessionCleanup.js';
 import {
+  type StartupWarning,
+  WarningPriority,
   type Config,
   type ResumedSessionData,
   type OutputPayload,
@@ -180,7 +183,7 @@ ${reason.stack}`
 export async function startInteractiveUI(
   config: Config,
   settings: LoadedSettings,
-  startupWarnings: string[],
+  startupWarnings: StartupWarning[],
   workspaceRoot: string = process.cwd(),
   resumedSessionData: ResumedSessionData | undefined,
   initializationResult: InitializationResult,
@@ -668,8 +671,13 @@ export async function main() {
     }
 
     let input = config.getQuestion();
-    const startupWarnings = [
-      ...(await getStartupWarnings()),
+    const rawStartupWarnings = await getStartupWarnings();
+    const startupWarnings: StartupWarning[] = [
+      ...rawStartupWarnings.map((message) => ({
+        id: `startup-${createHash('sha256').update(message).digest('hex').substring(0, 16)}`,
+        message,
+        priority: WarningPriority.High,
+      })),
       ...(await getUserStartupWarnings(settings.merged)),
     ];