Summary

• normalize access-log tool identity, add correlation IDs, raw tool paths, and sanitized failure diagnostics
• classify low-signal version and status probes as healthcheck traffic instead of mixing them into general daemon activity
• propagate access-log context through repo scan and PR-maintenance paths and add regression coverage

Validation

• go test ./internal/environment ./internal/service ./internal/app -count=1 -timeout=90s

Closes #326