[log] Add debug logging to circuit breaker

[github-actions]

Adds 4 focused debug log calls to internal/server/circuit_breaker.go using the existing logCircuitBreaker logger (server:circuit_breaker namespace).

Changes

File modified: internal/server/circuit_breaker.go

New logging calls

Location	Message
newCircuitBreaker	Logs creation with serverID, threshold, and cooldown so you can see CB config at startup
Allow (HALF-OPEN branch)	Logs when a probe is already in flight and the request is being rejected
RecordSuccess	Logs when the consecutive error counter is reset (only when it was > 0, avoids noise on healthy paths)
parseRateLimitResetFromText	Logs the parsed reset duration and absolute timestamp when a reset time is extracted from error text

Validation

• go build ./... ✅
• go vet ./... ✅
• go test ./internal/server/... ✅

Enable these logs

DEBUG=server:circuit_breaker ./awmg --config config.toml

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Generated by Go Logger Enhancement · ● 5.4M · ◷

[Copilot]

Pull request overview

Adds additional debug-level observability to the server rate-limit circuit breaker (internal/server/circuit_breaker.go) using the existing server:circuit_breaker debug logger namespace, to help diagnose configuration and state transitions during rate-limiting scenarios.

Changes:

• Log circuit breaker creation (server ID, threshold, cooldown) at initialization.
• Log additional circuit breaker state/flow details: HALF-OPEN probe rejection, consecutive error reset on success, and parsed rate-limit reset timing from error text.

Show a summary per file

File	Description
internal/server/circuit_breaker.go	Adds 4 debug log lines to improve visibility into circuit breaker creation, HALF-OPEN behavior, error counter resets, and parsed reset times.

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• Files reviewed: 1/1 changed files
• Comments generated: 0