The step execution engine was already gone (runWorkflowSteps deleted,
workflow_steps table dropped in migration 132). This removes what remained:
the linear step compiler (compileWorkflowToSteps/validateLinearity/
WorkflowCompileError), which survived only as a validator + step-preview
generator.
parseWorkflowIr/validateV2 (which accepts branching graphs) is now the sole
workflow validity gate at save/select/refine and in the graph task runner.
Custom branching workflows are now selectable and run on the graph
interpreter instead of being rejected as non-linear.
- core: delete workflow-compiler.ts; rework store.validateWorkflowCompilable
onto parseWorkflowIr; move MERGE_REGION_NODE_KINDS into
workflow-lifecycle-validation; retag workflow-steps-to-ir as legacy lowering
- engine: drop the compiler double-validation in workflow-graph-task-runner
- dashboard: remove POST /api/workflows/:id/compile + client wrapper; drop the
interpreterOnly response field and editor banner; no post-save compile check
- i18n: remove the orphaned workflowNodes.interpreterOnly key across locales
- tests: reframe two workflow-selection tests whose premise inverted; fix a
pre-existing red in builtin-lead-generation (completion-summary node)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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