feat(ops): add setup operator pack, heartbeat alert cooldown, and doctor strict mode

src/cli/doctor.ts

@@ -632,12 +632,25 @@ export async function runChecks(ctx: DoctorContext): Promise<CheckResult[]> {
   return results;
 }
 
+export function computeDoctorExitCode(results: CheckResult[], strict: boolean): number {
+  const failCount = results.filter((r) => r.status === 'fail').length;
+  const warnCount = results.filter((r) => r.status === 'warn').length;
+  if (failCount > 0) {
+    return 1;
+  }
+  if (strict && warnCount > 0) {
+    return 1;
+  }
+  return 0;
+}
+
 export function registerDoctorCommand(program: Command): void {
   program
     .command('doctor')
     .description('Validate configuration and check system health')
     .option('-c, --config <path>', 'Config file path')
-    .action(async (opts: { config?: string }) => {
+    .option('--strict', 'Treat warnings as failures')
+    .action(async (opts: { config?: string; strict?: boolean }) => {
       const configPath = opts.config ?? getConfigPath();
       const dataDir = getDataDir();
 
@@ -662,7 +675,10 @@ export function registerDoctorCommand(program: Command): void {
       };
 
       console.log(`Results: ${counts.pass} passed, ${counts.fail} failed, ${counts.warn} warnings, ${counts.skip} skipped`);
+      if (opts.strict && counts.warn > 0) {
+        console.log('Strict mode enabled: warnings are treated as failures.');
+      }
 
-      process.exit(counts.fail > 0 ? 1 : 0);
+      process.exit(computeDoctorExitCode(results, Boolean(opts.strict)));
     });
 }