Rein 3.3.2

What's New

Updated Flow Board UI

• Smooth state-diff animations (no graph rebuilds during execution)
• Grid layout for large workflows (5000+ blocks)
• Embed mode for iframe integration (?minimal=1)
• Zoom controls (+, -, Fit)

Orchestrator Decomposition

• Split into 9 focused modules for maintainability
• 100+ new tests for race conditions and routing edge cases

Security

• MCP path traversal fix (SEC-04)
• Credential scrub in outputs

Performance

• Memoized depth calculation (exponential -> O(V+E))
• Faster daemon task pickup
• Max blocks per workflow: 100 -> 300

Fixes

• Skip non-chosen routing branches
• Block save_as alias
• Gate completion edge cases