Remove client-specific branding from CloudWatch logger namespace

[endymion]

Location

• File: plexus/utils/scoring.py
• Line: 26
• Current Code:

cloudwatch_logger = CloudWatchLogger(namespace="CallCriteria/API")

Problem

The CloudWatch logger is initialized with a client-specific namespace "CallCriteria/API". This references the old client name and should be generalized for multi-tenant use.

Solution Options

1. Environment Variable: Create PLEXUS_CLOUDWATCH_NAMESPACE environment variable (e.g., "Plexus/API")
2. Configuration: Add to Plexus configuration system via plexus.cloudwatch.namespace config property
3. Hardcode Generic: Use a generic namespace like "Plexus/API" or "Plexus/Scoring"

Next Steps

1. Decide which approach fits Plexus architecture best
2. Implement the chosen solution
3. Update plexus/utils/scoring.py to use the new approach
4. Test CloudWatch logs are properly namespaced

Context

This is part of the broader effort to remove all client-specific "Call Criteria" branding from codebase.