[Sanction] Introduce a `N_BLOCK_SANCTION`

[Olshansk]

Objective

enum ShannonSanctionType {
  SHANNON_SANCTION_UNSPECIFIED = 0;
  SHANNON_SANCTION_SESSION = 1;  // Valid only for current session
  SHANNON_SANCTION_PERMANENT = 2; // Sanction persists indefinitely; can only be cleared by Gateway restart (e.g., redeploying the K8s pod or restarting the binary)
  SHANNON_SANCTION_DO_NOT_SANCTION = 3; // Do not sanction the endpoint based on this error
+ N_BLOCK_SANCTION ...
+ M_MINUTE_SANCTION ...
}

Origin Document

Goals

• Enable temporarily sanction bad supplier
• Avoid losing suppliers from a session that were sanctioned for a short period of time
• ...

Deliverables

• Update ShannonSanctionType w/ block sanctioning
• Evaluate if ShannonSanctionType should be updated with minute sanctioning
• Implement the sanctioning solution above (need to evalute when this should be used)
• Update the grafana dashboards to get visibility into:
  • Which suppliers are temporarily sanctioned
  • Why suppliers are temporarily sanctioned

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Creator: @Olshansk
Co-Owners: @adshmh