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72ac6773a1
Extract workflow zod schemas, link topology validator, and link repair into a new `@comfyorg/workflow-validation` package under `packages/`. The package has zero litegraph coupling — it operates on plain serialised JSON shapes — so it can be consumed by Node.js CI scripts and a future backend validator. Behaviour changes: - Replace the four `'Error. Expected node to match patched data.'` invariant throws in the link fixer with `LinkRepairAbortedError`, which carries a structured `TopologyError` describing the offending `[linkId, src, srcSlot, tgt, tgtSlot]`. - Add a pure `validateLinkTopology(graph)` that walks the link table and reports out-of-bounds slots, missing nodes, and endpoint mismatches as a structured `TopologyError[]`. This catches the seedance-style breakage (links targeting slots that don't exist on the node) which the schema cannot detect. - Surface topology errors via toast when `Comfy.Validation.Workflows` is enabled, instead of swallowing them with `console.error`. Unrepairable workflows raise an `error` toast with structured details and `useWorkflowValidation` returns `null` so the caller falls back to the original graph. Migration is via tsconfig + vite path aliases mirroring the existing `@/utils/formatUtil` precedent, so the 76 importers of `workflowSchema` and the lone importer of `linkFixer` continue to compile without changes. Adds `release-npm-workflow-validation.yaml`, a `workflow_dispatch` publisher mirroring the existing `release-npm-types` pattern, so a follow-up PR on Comfy-Org/workflow_templates can pin the published package for per-template topology CI.