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feat(approvals): retire process engine — approval is flow-node only (ADR-0019 P4/P5) - #1408
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…only (ADR-0019 P4/P5) Destructive removal of the standalone approval *process* engine. After ADR-0019 P1-P3 made approval work as a durable-pause flow node, this lands A4/A5: the process model is gone and approval exists only as `type: 'approval'` on a Flow. Removed: - spec: ApprovalProcessSchema/Step/Action, approval.form.ts, `approvals` stack collection (metadata-collection, stack.zod, metadata-type-schemas, metadata-form-registry), process_hash pinning - platform-objects: sys_approval_process object + nav + i18n; reframed sys_approval_request to node-era (process_name -> Source, no process_hash) - plugin-approvals: action-executor.ts, process defineProcess/submit/recall, per-object process hooks -> single node-era global record-lock hook; decide() bridges decision -> engine resume; phase-b.test deleted, approval-service.test rewritten to drive the node - rest: /approvals/processes + submit + recall routes (kept request reads + approve/reject decision routes wired to svc.decide) - runtime: app-plugin process seeder - cli/metadata: `approvals` stats + plural mapping Migrated examples off `approvals:` to approval-node flows: - app-crm: DiscountApprovalFlow - app-showcase: BudgetApprovalFlow connector_action is retained as a deliberate ADR-0018 open extension point. Green: spec/platform-objects/plugin-approvals/runtime/rest/cli/metadata/ service-automation + app-crm/app-showcase.
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… field Self-review follow-ups on the P4/P5 removal: - Drop decideApprovalNode (approval-node.ts) — it duplicated the resume orchestration now owned by the contract entrypoint ApprovalService.decide(). Migrated approval-node.test.ts to drive decide() via attachAutomation, and removed the now-unused export. One decision/resume path, not two. - Add a readonly approval_status select to crm_opportunity so the Discount Approval flow's approvalStatusField mirror has a real target (the mirror is try/caught, so before this it silently no-op'd in the example).
…tate-machine shape The metadata-validation-sweep workflow fixture still used the legacy workflow-rule shape (objectName/triggerType/criteria); `workflow` maps to StateMachineSchema (id/initial/states) since the workflow→state-machine migration, so the valid fixture failed validation. Updated it to a minimal valid state machine. Pre-existing failure surfaced by Test Core; unrelated to the approval node work but fixed here to keep CI green.
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May 31, 2026
…1409) P4/P5 (#1408) removed the standalone approval-process engine; approval now exists only as a `type: 'approval'` flow node. This brings the docs and the automation skill back in line with that — no code changes. - skills/objectstack-automation/SKILL.md: drop the deleted ApprovalProcess API; rewrite the approval section to the node model (config schema, approve/reject edges, decision via ApprovalService.decide), add `approval` to the Flow node table (19 node types), add the old→new re-home mapping, refresh best practices + CRM blueprint. - README / guides/packages / concepts/packages: fix the plugin one-liner (no more "approval-process engine"/sys_approval_process). - references/*: regenerate auto-docs from current schemas — approval.mdx now shows ApprovalNodeConfig/ApprovalDecision/etc; also syncs other drifted auto-docs whose schemas changed but weren't regenerated (workflow.mdx -> state-machine.mdx, field `secret` type, ADR-0018 open-registry text, …). Historical records left as-is: CHANGELOGs, ROADMAP milestone, ADR 0009/0018. Co-authored-by: Jack Zhuang <277994282+os-zhuang@users.noreply.github.com>
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Summary
Destructive removal phase of ADR-0019 (approval as a flow node). With P1–P3 (#1407) approval already worked as a durable-pause flow node; this PR lands A4/A5 and deletes the standalone approval process engine. Approval now exists only as
type: 'approval'on a Flow.What changed
Removed
ApprovalProcessSchema/ApprovalStepSchema/ApprovalActionSchema,approval.form.ts, theapprovalsstack collection (metadata-collection,stack.zod,metadata-type-schemas,metadata-form-registry),process_hashpinning.sys_approval_processobject + Setup nav + i18n;sys_approval_requestreframed to the node era (process_name→ Source, noprocess_hash).action-executor.ts,defineProcess/ submit / recall, per-object process hooks → one node-era global record-lock hook reading policy from the request'snode_config_json;decide()bridges a decision into the engine'sresume(runId, { branchLabel }).phase-b.test.tsdeleted;approval-service.test.tsrewritten to drive the node./approvals/processes+ submit + recall routes (kept request reads + approve/reject decision routes, now viasvc.decide).approvalsstats + plural→singular mapping.Migrated examples off
approvals:DiscountApprovalFlowBudgetApprovalFlowconnector_actionis retained — a deliberate ADR-0018 open extension point, not a process remnant.Test plan
Green builds + tests across: spec (6601), platform-objects (78), plugin-approvals (29), runtime (325), rest (78), cli (137), metadata (241), service-automation (79), and both example apps (app-crm 29, app-showcase 8).