chore: restore Rust fmt and clippy cleanliness

[willwashburn]

Summary

• Apply rustfmt across the Rust workspace.
• Resolve clippy warnings with mechanical, behavior-preserving cleanup.
• Leave the pre-existing .gitignore local edit unstaged.

Verification

• cargo fmt --all -- --check: pass
• cargo clippy --workspace --all-targets -- -D warnings: pass
• cargo test --workspace: pass

Closes #457

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 57cd2ac1-5b21-4f14-a74d-1d1e3d57d476

📥 Commits

Reviewing files that changed from the base of the PR and between def9c50 and 271fccd.

📒 Files selected for processing (63)

• crates/relayburn-cli/src/commands/compare.rs
• crates/relayburn-cli/src/commands/flow.rs
• crates/relayburn-cli/src/commands/hotspots.rs
• crates/relayburn-cli/src/commands/ingest.rs
• crates/relayburn-cli/src/commands/mcp_server.rs
• crates/relayburn-cli/src/commands/overhead.rs
• crates/relayburn-cli/src/commands/state.rs
• crates/relayburn-cli/src/commands/summary.rs
• crates/relayburn-cli/src/harnesses/claude.rs
• crates/relayburn-cli/src/harnesses/opencode.rs
• crates/relayburn-cli/src/harnesses/pending_stamp.rs
• crates/relayburn-cli/src/harnesses/registry.rs
• crates/relayburn-cli/tests/golden.rs
• crates/relayburn-sdk-node/src/lib.rs
• crates/relayburn-sdk/src/analyze.rs
• crates/relayburn-sdk/src/analyze/claude_md.rs
• crates/relayburn-sdk/src/analyze/compare.rs
• crates/relayburn-sdk/src/analyze/context_delta.rs
• crates/relayburn-sdk/src/analyze/fidelity.rs
• crates/relayburn-sdk/src/analyze/flow_graph.rs
• crates/relayburn-sdk/src/analyze/ghost_surface.rs
• crates/relayburn-sdk/src/analyze/hotspots.rs
• crates/relayburn-sdk/src/analyze/overhead.rs
• crates/relayburn-sdk/src/analyze/patterns.rs
• crates/relayburn-sdk/src/analyze/patterns_tests.rs
• crates/relayburn-sdk/src/analyze/replacement_savings.rs
• crates/relayburn-sdk/src/analyze/span_tree.rs
• crates/relayburn-sdk/src/analyze/subagent_tree.rs
• crates/relayburn-sdk/src/analyze/tool_call_patterns.rs
• crates/relayburn-sdk/src/analyze/tool_output_bloat.rs
• crates/relayburn-sdk/src/export_verbs.rs
• crates/relayburn-sdk/src/ingest.rs
• crates/relayburn-sdk/src/ingest/fs_events.rs
• crates/relayburn-sdk/src/ingest/gap.rs
• crates/relayburn-sdk/src/ingest/gap_warning_tests.rs
• crates/relayburn-sdk/src/ingest/ingest.rs
• crates/relayburn-sdk/src/ingest/pending_stamps.rs
• crates/relayburn-sdk/src/ingest_verb.rs
• crates/relayburn-sdk/src/ledger.rs
• crates/relayburn-sdk/src/ledger/bootstrap.rs
• crates/relayburn-sdk/src/ledger/config.rs
• crates/relayburn-sdk/src/ledger/db.rs
• crates/relayburn-sdk/src/ledger/paths.rs
• crates/relayburn-sdk/src/ledger/reader.rs
• crates/relayburn-sdk/src/ledger/stamp.rs
• crates/relayburn-sdk/src/ledger/tests.rs
• crates/relayburn-sdk/src/ledger/writer.rs
• crates/relayburn-sdk/src/lib.rs
• crates/relayburn-sdk/src/query_verbs.rs
• crates/relayburn-sdk/src/reader.rs
• crates/relayburn-sdk/src/reader/claude.rs
• crates/relayburn-sdk/src/reader/claude/parent_chain.rs
• crates/relayburn-sdk/src/reader/claude/span_tree.rs
• crates/relayburn-sdk/src/reader/claude/subagents.rs
• crates/relayburn-sdk/src/reader/codex.rs
• crates/relayburn-sdk/src/reader/codex/span_tree.rs
• crates/relayburn-sdk/src/reader/hash.rs
• crates/relayburn-sdk/src/reader/inference.rs
• crates/relayburn-sdk/src/reader/opencode.rs
• crates/relayburn-sdk/src/reader/opencode/tests.rs
• crates/relayburn-sdk/src/reader/types.rs
• crates/relayburn-sdk/src/stamp_verb.rs
• crates/relayburn-sdk/src/util/time.rs

---

📝 Walkthrough

Walkthrough

This PR restores rustfmt and clippy cleanliness across the workspace by applying formatting, derive trait additions, lint suppressions, and minor semantic improvements. Changes are predominantly whitespace/line-wrapping normalization, import reordering, and clippy cleanup, with targeted logic improvements in error handling, pattern validation, and type refinement.

Changes

Formatting & Lint Cleanup

Layer / File(s)	Summary
CLI command formatting & refactors crates/relayburn-cli/src/commands/{compare,flow,hotspots,ingest,mcp_server,overhead,state,summary}.rs, crates/relayburn-cli/src/harnesses/{claude,opencode,pending_stamp,registry}.rs, crates/relayburn-cli/tests/golden.rs	CLI command implementations and harness adapters updated with rustfmt line-wrapping and whitespace normalization. Minor logic improvements: --patterns validation now uses contains() helper instead of any() predicate; error handling switches from map_err to inspect_err for progress cleanup; sort helpers remove lifetime generics and use sort_by_key(Reverse(...)) for descending byte ordering.
SDK analyze module formatting crates/relayburn-sdk/src/analyze/{*.rs,*_tests.rs}	Analyze submodules (claude_md, compare, context_delta, flow_graph, hotspots, overhead, patterns, span_tree, subagent_tree, tool_call_patterns, tool_output_bloat) reformatted for rustfmt compliance. Added clippy lint attributes (#[allow(clippy::too_many_arguments)], #[allow(clippy::enum_variant_names)]) and refactored logic: matches! macro used instead of match expressions; direct u64 subtraction for token computation instead of casting; test fixtures reformatted without assertion changes.
SDK ingest, export, & ledger formatting crates/relayburn-sdk/src/{ingest.rs,export_verbs.rs,query_verbs.rs}, crates/relayburn-sdk/src/ingest/{*.rs}, crates/relayburn-sdk/src/ledger/{*.rs}	Ingest and ledger modules updated with rustfmt line-wrapping and lint cleanup. SearchQueryOptions derives Default instead of manual implementation; #[allow(clippy::module_inception)] added to ingest module. Function signatures and SQL call sites reformatted without behavior changes.
SDK reader module type refinements & formatting crates/relayburn-sdk/src/reader.rs, crates/relayburn-sdk/src/reader/{claude.rs,codex.rs,hash.rs,inference.rs,opencode.rs,types.rs} and submodules	Reader module formatting plus semantically meaningful improvements: byte-length computation standardized to s.len() for both string and JSON-serialized outputs; InferenceRef::Synthetic now wraps synthesized inferences in Box<Inference> for lifetime correctness; RelationshipKey type alias introduced for dedup-key typing; subagent resolution refactored to use while let loop with consolidated parent-tool-use matching; prescan system-line handling reformatted with equivalent logic.
Query verbs & SDK re-export formatting crates/relayburn-sdk/src/query_verbs.rs, crates/relayburn-sdk/src/lib.rs	SummaryReportOptions now derives Default instead of manual implementation. Added #[allow(clippy::large_enum_variant)] to SummaryReport enum. Session span-tree bucketing and Claude span-tree input wiring reformatted for clarity without behavior changes. Top-level SDK re-exports reorganized into grouped multi-line pub use blocks.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• AgentWorkforce/burn#457: The linked issue describing the rustfmt and clippy cleanliness goals addressed by this PR.
• AgentWorkforce/burn#386: Prior refactoring of burn summary command implementation that this PR's formatting updates build upon.
• AgentWorkforce/burn#445: Added stopReasons field to summary JSON that this PR reformats for clippy compliance.

Poem

🐰 The code was messy, lines too long,
With clippy warnings all along—
We've wrapped and sorted, traits derived,
Now rustfmt and clippy thrive!
✨ Hygiene restored, the workspace is clean. 🧹

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/wave1-rust-hygiene

[cubic-dev-ai]

No issues found across 63 files

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