Resolve all 19 remaining open questions across the architecture. Every
question now has a documented resolution with rationale:
- OQ-004/OQ-029: edgeType is a universal required attribute on all edges,
single graph per FlowGraph instance (ADR-006)
- OQ-011: No OR preconditions for v1; preconditionMode as v2 extension
- OQ-012: maxConcurrency enforced via reactive counting semaphore
- OQ-014: Unknown operationId creates node with pending status
- OQ-017: Expose common graphology traversal methods on FlowGraph (80/20)
- OQ-020: condition as Type.Unknown() with string/function documentation
- OQ-022: Identity imported from @alkdev/operations peer dep
- All other questions resolved with documented rationale
Fix three critical issues found by architecture review:
1. edgeType serialization/validation gap: document two-step validation
2. CallEdgeAttrs runtime discrimination: edgeType as runtime discriminant,
depends_on edges clarified as observability-only (not execution)
3. ADR-005 signal mutation inconsistency: explicitly distinguish call-level
statuses (event-log-driven) from workflow-derived statuses (signal-mutation)
Additional clarifications:
- dataFlow inference uses conservative strategy (defaults false)
- Conditional.test string resolution: operationName → status === completed
- Add negated field to TemplateEdgeAttrs for else-branch conditions
- Document edge key priority convention for composite keys
- Add maxConcurrency semaphore design to reactive-execution.md
