Summary

Add the normative framework-neutral execution plan and deterministic reference evaluator for the source-bound RegisterProject semantic vertical.

Added

Add capability-admitted semantic execution plans with typed pre-execution unsupported issues. (#136)
Add immutable world state and normalized Accepted, Rejected, Conflict, and Unsupported outcomes. (#136)
Execute exact command contracts, command/concept not empty validation, unconditional facts, one-instance projections, and optional snapshot queries atomically. (#136)
Add deterministic specification execution/comparison and the source → ESM → plan → success/rejection RegisterProject vector. (#136)
Document reference execution and its currently admitted capability subset. (#136)

Make unsupported validation, conditional production, affected cardinality, and query delivery block plan creation rather than execute partially. (#136)