feat(timing): Spar_Timing + Spar_Trace property sets (Track A foundation) (v0.7.0)

[avrabe]

Summary

First commit of roughly four for Track A (IRQ-aware RTA, v0.7.0). Lands
only the property-set surface so the foundation is small and
reviewable. Analysis wiring ships in follow-up commits.

Two new non-standard property sets are registered in
spar-hir-def::standard_properties so they resolve without explicit
with imports, matching the treatment of the AS5506 Appendix A sets:

• Spar_Timing — IRQ/interrupt-layer modeling for hierarchical RTA

  • ISR_Priority (aadlinteger)
  • ISR_Execution_Time (Time_Range)
  • Interrupt_Latency_Bound (Time)
  • Bottom_Half_Server (reference (thread))

• Spar_Trace — probe points for closed-loop trace verification (v0.8.0 precursor)

  • Probe_Point (aadlboolean)
  • Expected_BCET, Expected_WCET, Expected_Mean (all Time)

What's explicitly NOT in this commit

• No changes to spar-analysis/*.rs — RTA consumption is later.
• No parser or lexer changes — these are standard-named property sets, no syntax extension needed.
• No changes to docs/contracts/rivet-spar-variant-v1.md (separate track).
• No claim in COMPLIANCE.md that IRQ-aware RTA "works" — only that the property surface landed.

Rivet traceability

New requirements in artifacts/requirements.yaml:

• REQ-TIMING-IRQ-001 — ISR execution time distinct from handler thread WCET
• REQ-TIMING-IRQ-002 — Hardware IRQ-to-ISR latency bound
• REQ-TIMING-IRQ-003 — Top-half/bottom-half thread decomposition
• REQ-TRACE-001 — Probe-point annotation for runtime trace emission
• REQ-TRACE-002 — Per-component expected-timing properties for runtime comparison

Linked from two new features in artifacts/verification.yaml
(TEST-SPAR-TIMING-PROPS, TEST-SPAR-TRACE-PROPS) pointing at the
specific unit tests added to spar-hir-def/src/standard_properties.rs.

How reviewers can verify

• cargo test -p spar-hir-def — 426 tests pass, including three new tests:
  • test_standard_properties_in_spar_timing
  • test_standard_properties_in_spar_trace
  • test_spar_property_sets_resolved_via_global_scope
• cargo build --workspace — clean.
• cargo clippy --workspace --all-targets -- -D warnings — clean.
• cargo fmt --all -- --check — clean.
• rivet validate — PASS (warnings only; same class of field not defined in schema notices that already exist for every other feature in the file).

Test plan

• cargo build --workspace
• cargo test -p spar-hir-def
• cargo clippy --workspace --all-targets -- -D warnings
• cargo fmt --all -- --check
• rivet validate

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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