🔴 P0 Security Alert: Critical Code Vulnerabilities Exposed in Internal Codebase Review

A comprehensive internal codebase review has uncovered four critical security vulnerabilities requiring immediate remediation. The findings expose significant gaps in authentication, authorization, and input validation that could be exploited to compromise system integrity and data security.

The most severe issue is an unauthenticated public SMS webhook endpoint (`apps/api/src/modules/notifications/sms-webhook.controller.ts`), which currently lacks HMAC signature verification. This allows any actor to send fraudulent delivery reports. Additional flaws include an overly broad XSS skip path in the security middleware, a missing null check for the user object in the RolesGuard that could cause crashes, and a CI/CD pipeline configuration that does not fail on high-severity security audit findings.

These vulnerabilities collectively represent a substantial operational risk. The unsecured webhook could be used to manipulate notification states or feed false data into the system. The lax CI/CD security gate and the potential for authorization bypass or application crashes underscore systemic weaknesses in the security posture. The directive to change `continue-on-error: true` to fail on high-severity issues signals a critical shift towards enforcing security standards in the deployment pipeline.