ROADMAP #4.44.5: Ship/provenance opacity — filed from dogfood

Added structured delivery-path contract to surface branch → merge → main-push
provenance as first-class events. Filed from the 56-commit 2026-04-20 push
that exposed the gap.

Also fixes: ApiError test compilation — add suggested_action: None to 4 sites

- Line ~8414: opaque_provider_wrapper_surfaces_failure_class_session_and_trace
- Line ~8436: retry_exhaustion_uses_retry_failure_class_for_generic_provider_wrapper
- Line ~8499: provider_context_window_errors_are_reframed_with_same_guidance
- Line ~8533: retry_wrapped_context_window_errors_keep_recovery_guidance

rust/CLAUDE.md

@@ -0,0 +1,15 @@
+# CLAUDE.md
+
+This file provides guidance to Claw Code (clawcode.dev) when working with code in this repository.
+
+## Detected stack
+- Languages: Rust.
+- Frameworks: none detected from the supported starter markers.
+
+## Verification
+- Run Rust verification from the repo root: `cargo fmt`, `cargo clippy --workspace --all-targets -- -D warnings`, `cargo test --workspace`
+
+## Working agreement
+- Prefer small, reviewable changes and keep generated bootstrap files aligned with actual repo workflows.
+- Keep shared defaults in `.claw.json`; reserve `.claw/settings.local.json` for machine-local overrides.
+- Do not overwrite existing `CLAUDE.md` content automatically; update it intentionally when repo workflows change.