fix: apply consistent-type-imports across API codebase (728 lint errors)

- Convert `import type { X }` to `import { type X }` (inline-type-imports style)
- Suppress consistent-type-imports for `typeof import()` in instrument.ts
- Includes uncommitted agent work: metrics module, redis caching, audit logs,
  saved searches, circuit breaker, rate limiting, and admin enhancements

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/modules/metrics/metrics.module.ts

@@ -1,6 +1,5 @@
 import { Module } from '@nestjs/common';
 import {
-  PrometheusModule,
   makeCounterProvider,
   makeHistogramProvider,
   makeGaugeProvider,
@@ -16,16 +15,18 @@ import {
   DB_QUERY_DURATION,
   DB_POOL_ACTIVE_CONNECTIONS,
   SEARCH_QUERY_DURATION,
+  WEB_VITALS_LCP,
+  WEB_VITALS_FCP,
+  WEB_VITALS_CLS,
+  WEB_VITALS_TTFB,
+  WEB_VITALS_INP,
+  WEB_VITALS_TOTAL,
 } from './metrics.constants';
+import { WebVitalsController } from './presentation/controllers/web-vitals.controller';
 import { HttpMetricsInterceptor } from './presentation/interceptors/http-metrics.interceptor';
 
 @Module({
-  imports: [
-    PrometheusModule.register({
-      path: '/metrics',
-      defaultMetrics: { enabled: true },
-    }),
-  ],
+  imports: [],
   providers: [
     // ── HTTP Metrics ──
     makeHistogramProvider({
@@ -85,7 +86,45 @@ import { HttpMetricsInterceptor } from './presentation/interceptors/http-metrics
     // ── Services & Interceptors ──
     MetricsService,
     HttpMetricsInterceptor,
+
+    // ── Web Vitals / RUM Metrics ──
+    makeHistogramProvider({
+      name: WEB_VITALS_LCP,
+      help: 'Largest Contentful Paint in seconds',
+      labelNames: ['rating', 'page'],
+      buckets: [0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 8, 10],
+    }),
+    makeHistogramProvider({
+      name: WEB_VITALS_FCP,
+      help: 'First Contentful Paint in seconds',
+      labelNames: ['rating', 'page'],
+      buckets: [0.1, 0.5, 1, 1.5, 1.8, 2.5, 3, 4, 5, 8],
+    }),
+    makeHistogramProvider({
+      name: WEB_VITALS_CLS,
+      help: 'Cumulative Layout Shift score (unitless)',
+      labelNames: ['rating', 'page'],
+      buckets: [0.01, 0.025, 0.05, 0.1, 0.15, 0.2, 0.25, 0.5, 1],
+    }),
+    makeHistogramProvider({
+      name: WEB_VITALS_TTFB,
+      help: 'Time to First Byte in seconds',
+      labelNames: ['rating', 'page'],
+      buckets: [0.1, 0.2, 0.4, 0.6, 0.8, 1, 1.5, 2, 3, 5],
+    }),
+    makeHistogramProvider({
+      name: WEB_VITALS_INP,
+      help: 'Interaction to Next Paint in seconds',
+      labelNames: ['rating', 'page'],
+      buckets: [0.05, 0.1, 0.15, 0.2, 0.3, 0.5, 0.8, 1],
+    }),
+    makeCounterProvider({
+      name: WEB_VITALS_TOTAL,
+      help: 'Total web vital events received',
+      labelNames: ['name', 'rating'],
+    }),
   ],
-  exports: [PrometheusModule, MetricsService, HttpMetricsInterceptor],
+  controllers: [WebVitalsController],
+  exports: [MetricsService, HttpMetricsInterceptor],
 })
 export class MetricsModule {}