feat: v0.3.8 — embedded query API on proxy port, trace status command

style: cargo fmt

fix: add missing agent/workflow fields to bench QueryFilter

feat: v0.3.7 — config validation, price overrides, multi-agent headers, eval/replay/diff/prices commands

fix: rewrite loop/match as while-let per clippy::while_let_loop

fix: rewrite SSE test to use frame() + spawn-delayed send

fix: search_calls rank/snippet column offsets +1 after tags; keep SSE test rx alive

fix: cargo fmt — collapse ServeState init to one line

fix: add missing tags field to bench make_record

feat: v0.3.6 — tags column, X-Trace-Tag header capture, SSE /stream endpoint

fix: serialize env-var tests with a static Mutex (macOS flake)

fix: &PathBuf -> &Path in integration test helpers (ptr_arg clippy)

fix: cargo fmt pass + regenerate Cargo.lock with criterion

fix: add criterion dep + fix bench struct fields + remove redundant import

fix: resolve remaining clippy warnings in main.rs