- Remove unused ServerConfig struct (config via CLI args) - Remove unused otpks field from Database (not yet needed) - Wire AppError into message routes with proper error propagation - Remove unused imports in send.rs (Seed, MessageContent, etc.) - Suppress dead_code on BundleResponse.fingerprint (needed by serde) Zero warnings, 17/17 tests pass. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>