safety(api-gateway): remove debug token logging from JWT interceptor

Removed error!() call that logged the full JWT token on decode failure.
This was a security risk - tokens should never appear in logs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

services/api_gateway/src/auth/interceptor.rs

@@ -369,11 +369,6 @@ impl JwtService {
         let token_data =
             decode::<JwtClaims>(token, &self.decoding_key, &self.validation).map_err(|e| {
                 error!("JWT decode failed in interceptor: {:?}", e);
-                error!("FULL TOKEN FOR DEBUGGING: {}", token);
-                error!(
-                    "Token (first 50 chars): {}...",
-                    &token[..50.min(token.len())]
-                );
                 let issuer_str = self
                     .validation
                     .iss