fix(push): remove ScheduleModule, use manual setInterval for retry polling

- Replaced @interval decorator with manual setInterval in onAppBootstrap
  to avoid ScheduleModule reflect-metadata TypeError during Swagger
  generation (CI contract-check crash)
- Removed ScheduleModule import from PushModule
- Store pollTimer reference for cleanup in onAppClose

Ref: #378

Author: wax911

src/package/push/push-retry.service.ts

@@ -1,5 +1,4 @@
 import { Injectable, SCOPE } from '@danet/core';
-import { Interval } from '@danet/core';
 import { OnAppBootstrap, OnAppClose } from '@danet/core/hook';
 import { createLazyClient, type Redis } from '@db/redis';
 import { SecretService } from '@scope/secret';
@@ -28,6 +27,7 @@ const REDIS_KEY = 'edge:push:retry';
 export class PushRetryService implements OnAppBootstrap, OnAppClose {
   private redis!: Redis;
   private polling = false;
+  private pollTimer: ReturnType<typeof setInterval> | undefined;
 
   constructor(
     secret: SecretService,
@@ -73,7 +73,6 @@ export class PushRetryService implements OnAppBootstrap, OnAppClose {
   }
 
   /** Poll for due retry jobs and attempt delivery. Runs every minute. */
-  @Interval(RETRY_POLL_INTERVAL_MS)
   async poll(): Promise<void> {
     if (this.polling || !this.redis.isConnected) return;
     this.polling = true;
@@ -139,6 +138,12 @@ export class PushRetryService implements OnAppBootstrap, OnAppClose {
       this.logger.instance.debug(
         `Push-retry Redis connection validated: ${pong}`,
       );
+      // Start polling interval (manual setInterval avoids
+      // ScheduleModule + @Interval crash during Swagger generation)
+      this.pollTimer = setInterval(
+        () => this.poll().catch(() => {}),
+        RETRY_POLL_INTERVAL_MS,
+      );
     } catch (err) {
       this.logger.instance.warn(
         'Push-retry Redis connection failed during bootstrap. Push retries will be unavailable until Redis is configured.',
@@ -148,6 +153,9 @@ export class PushRetryService implements OnAppBootstrap, OnAppClose {
   }
 
   async onAppClose(): Promise<void> {
+    if (this.pollTimer !== undefined) {
+      clearInterval(this.pollTimer);
+    }
     if (this.redis.isConnected) {
       this.redis.close();
     }

src/package/push/push.module.ts

@@ -1,4 +1,4 @@
-import { Module, ScheduleModule } from '@danet/core';
+import { Module } from '@danet/core';
 import { LoggerModule } from '@scope/logger';
 import { DatabaseModule } from '@scope/database';
 import { ExperimentModule } from '@scope/experiment';
@@ -17,7 +17,6 @@ import { PushRetryService } from './push-retry.service.ts';
     ExperimentModule,
     RateLimitModule,
     PushSenderModule,
-    ScheduleModule,
   ],
   controllers: [PushController],
   injectables: [