add invalid captcha and messageChannel sync status health monitoring (#10029)

Context : 
We want to implement some counters to monitor server health. First
counters will track : messageChannel sync status during job execution
and invalid captcha.

How : 
Counters are stored in cache and grouped by one-minute windows.
Controllers are created for each metric, aggregating counter over a
five-minutes window.
Endpoints are public and will be queried by Prometheus.

closes https://github.com/twentyhq/core-team-issues/issues/55

packages/twenty-server/src/engine/core-modules/environment/environment-variables.ts

@@ -1036,6 +1036,15 @@ export class EnvironmentVariables {
   @IsString()
   @IsOptional()
   ENTERPRISE_KEY: string;
+
+  @EnvironmentVariablesMetadata({
+    group: EnvironmentVariablesGroup.Other,
+    description: 'Health monitoring time window in minutes',
+  })
+  @IsNumber()
+  @CastToPositiveNumber()
+  @IsOptional()
+  HEALTH_MONITORING_TIME_WINDOW_IN_MINUTES = 5;
 }
 
 export const validate = (