[core] Fix swagger docs

src/api/health.controller.ts

@@ -1,5 +1,5 @@
 import { Controller, Get } from '@nestjs/common';
-import { ApiTags } from '@nestjs/swagger';
+import { ApiOperation, ApiTags } from '@nestjs/swagger';
 import { HealthCheck } from '@nestjs/terminus';
 
 import { WAHAHealthCheckService } from '../core/abc/WAHAHealthCheckService';
@@ -11,6 +11,9 @@ export class HealthController {
 
   @Get()
   @HealthCheck()
+  @ApiOperation({
+    summary: 'Check the health of the server, performing all health checks.',
+  })
   async check() {
     return this.wahaHealth.check();
   }

src/api/version.controller.ts

@@ -1,5 +1,10 @@
 import { Controller, Get } from '@nestjs/common';
-import { ApiExtraModels, ApiSecurity, ApiTags } from '@nestjs/swagger';
+import {
+  ApiExtraModels,
+  ApiOperation,
+  ApiSecurity,
+  ApiTags,
+} from '@nestjs/swagger';
 
 import { WAHAEnvironment } from '../structures/environment.dto';
 import { VERSION } from '../version';
@@ -9,6 +14,7 @@ import { VERSION } from '../version';
 @ApiTags('other')
 export class VersionController {
   @Get('')
+  @ApiOperation({ summary: 'Get the version of the server' })
   get(): WAHAEnvironment {
     return VERSION;
   }

src/structures/environment.dto.ts

@@ -2,7 +2,7 @@ import { ApiProperty } from '@nestjs/swagger';
 
 export class WAHAEnvironment {
   @ApiProperty({
-    example: '2029.10.29',
+    example: 'YYYY.MM.BUILD',
   })
   version: string;