Added Section 8 to phase201-join-value-space-design.md: - 8.1: Completed tasks summary table (all 7 tasks done) - 8.2: Key implementation insight - Original plan: all params from alloc_local() - Actual: loop_step params use ConditionEnv's ValueIds - Reason: condition lowering needs matching ValueIds - 8.3: Test results (821 tests pass, E2E verified) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>