Remove unused configuration variables

[AbirAbbas]

Summary

Audited control-plane/config/agentfield.yaml and found many config options that were defined but never actually used by the codebase. This creates confusion for users who set these values expecting them to have an effect.

Removed 103 lines of dead config/struct definitions.

What Was Removed

From YAML config:

Section	Removed Fields	Reason
agentfield	mode, max_concurrent_requests, request_timeout, circuit_breaker_threshold	Never wired to any implementation
execution_queue	worker_count, request_timeout, lease_duration, max_attempts, failure_backoff, max_failure_backoff, poll_interval, result_preview_bytes, queue_soft_limit, waiter_map_limit	Defined but never accessed
ui	backend_url	Never used
storage.local	cache_size, retention_days, auto_vacuum	SQLite uses hardcoded values
storage	config: {}	Generic field never accessed
agents	Entire section	Discovery/scaling never implemented

From Go structs:

• AgentsConfig, DiscoveryConfig, ScalingConfig
• CoreFeatures, EnterpriseFeatures
• DataDirectoriesConfig
• Various unused fields in AgentFieldConfig, ExecutionQueueConfig, LocalStorageConfig, StorageConfig, UIConfig

What Remains (All Actively Used)

agentfield:
  port                          # HTTP server port
  execution_cleanup: ...        # All fields used by cleanup service
  execution_queue:
    agent_call_timeout          # Used in ExecuteHandler
    webhook_*                   # Used by WebhookDispatcher

ui:
  enabled, mode, dev_port       # All used for UI serving

api:
  cors: ...                     # All fields passed to Gin CORS middleware

storage:
  mode                          # Used by StorageFactory
  local:
    database_path, kv_store_path  # Used by LocalStorage
  vector:
    enabled, distance           # Used by vector store

features:
  did: ...                      # All fields used by DID/VC services

Test plan

• go build ./... succeeds
• go test ./internal/config/... passes
• go test ./internal/storage/... passes
• go test ./cmd/... passes
• go test ./internal/application/... passes
• go test ./internal/server/... passes

🤖 Generated with Claude Code

[santoshkumarradha]

LGTM, old v0.1 reminiscent configs.

[santoshkumarradha]

@AbirAbbas cache_size, retention_days, auto_vacuum - lets add it to backlog probably to be added to memory api but was debating to add ttl directly in the rest api for per memory setting. Good prod grooming backlog.