Integrate native Requirement Compiler and deterministic evaluator

[Coconut-ch1ken]

Summary

• replace the semantic IntentIR compatibility projection with a native deterministic RequirementIR v2 compiler
• add a separate deterministic RequirementIR format/integrity evaluator and fail closed before sprint binding
• retain 25 IntentIR fixtures plus 25 RequirementIR/evaluation bundles as reproducible contract evidence
• classify compiler output separately from evaluator output in the metadata registry

Pipeline behavior

• only an accepted, hash-matched intent_ir.json reaches the Requirement Compiler
• the compiler emits requirement_ir.json; the preflight evaluator emits requirement_format_evaluation.json
• evaluator failure blocks downstream sprint binding
• the non-semantic legacy fallback remains unchanged
• requirement_validation.json and requirement_coverage.json remain separate future evaluator artifacts

Verification

• 61 passed across Requirement Compiler, Intent Compiler, Intent Gateway, and intake-command tests
• fixture validator: 25/25 valid IntentIR inputs
• evaluation validator: 25/25 format evaluations passed; 0 legacy-shape outputs
• git diff --cached --check passed before commit

[Coconut-ch1ken]

Follow-up for the two full-non-rust failures:

• Root cause: the workflow floated on bun-version: latest and picked up Bun 1.4.0. Bun's runtime transpiler cache (*.pile) was not redirected with the package cache, leaving state under the sandbox home.
• Fix: pin the matrix to Bun 1.4.0; default both Bun cache paths under SOLAR_HOME; propagate them through daemon wrappers/service definitions; contain the dashboard smoke cache; retain the strict zero-residue assertion.
• Local verification: reproduced the unpatched .bun/install/cache/@t@/*.pile failure with Bun 1.4.0, then passed install, reinstall, daemon/dashboard boot, and repair through the same boundary with the patch. Daemon render checks, Bash syntax, workflow YAML parsing, and scoped diff checks pass.

Commit: 6294cea6f