# Sprint 46 Foundation This document captures the baseline artifacts introduced for Sprint 46. ## Components - Semantic IR schema: `editor/src/SemanticCoreIR.h` - Support tiers and gate mapping: `editor/src/LanguageSupportTier.h` - Capability matrix model: `editor/src/LanguageCapabilityMatrix.h` - Migration contract checks: `editor/src/MigrationAcceptanceContract.h` ## Example Artifacts - Semantic IR example: `docs/examples/sprint46_semantic_core_example.json` ## Notes - All schema models are deterministic JSON serializable. - Unknown tags/fields are preserved where possible for forward compatibility.