slp-modular-cms/aidlc-docs/features/local-dev-master-slave-setup/aidlc-state.md

AI-DLC State Tracking

Project Information

• Feature Name: Local Dev Master/Slave Setup
• Feature Slug: local-dev-master-slave-setup
• Project Type: Brownfield
• Start Date: 2026-07-02T00:00:00Z
• Current Stage: ✅ CLOSED — feature complete, including post-completion live-testing follow-up fixes (2026-07-04); no further work planned
• Branch: unknown

Workspace State

• Existing Code: Yes
• Reverse Engineering Needed: No (artifacts exist in aidlc-docs/_shared/reverse-engineering/)
• Workspace Root: K:\Development\Projects\SlpModularCms

Code Location Rules

• Application Code: Workspace root (NEVER in aidlc-docs/)
• Feature Documentation: aidlc-docs/features/local-dev-master-slave-setup/ only
• Shared Artifacts: aidlc-docs/_shared/

Language Configuration

• Documentation Language: English
• Conversation Language: Dutch (User Language)

Extension Configuration

[Will be populated during Requirements Analysis]

Execution Plan Summary

• Total Stages: Workspace Detection, Requirements Analysis, User Stories (skipped), Workflow Planning, Application Design, Units Generation, Code Generation (x2 units), Build and Test
• Stages to Execute: Workflow Planning, Application Design, Units Generation, Code Generation (Unit 1: Backend dual-instance hosting; Unit 2: Frontend dual-instance tooling & runbook), Build and Test
• Stages to Skip: User Stories (dev tooling, no user-facing change); Functional Design, NFR Requirements, NFR Design, Infrastructure Design (all per-unit — no new business logic, NFRs already fully captured in requirements.md, no infrastructure/cloud involved)

Stage Progress

🔵 INCEPTION PHASE

• Workspace Detection — Complete
• Requirements Analysis — Complete (inception/requirements/requirements.md)
• User Stories — Skipped (dev tooling, no user-facing functional change)
• Workflow Planning — Complete (inception/plans/execution-plan.md)
• Application Design — Complete (inception/application-design/)
• Units Generation — Complete (inception/application-design/unit-of-work*.md)

🟢 CONSTRUCTION PHASE

• Unit 1 (Backend dual-instance hosting) — Code Generation complete (construction/unit-1-backend-dual-instance-hosting/code/summary.md); build + full test suite verified green; manual module-discovery check confirms slave excludes Master
• Unit 2 (Frontend dual-instance tooling & runbook) — Code Generation complete (construction/unit-2-frontend-dual-instance-tooling/code/summary.md); includes pnpm dev:all compound launcher, per-instance tab titles, and module-capability gating (ModuleGuard/useSystemCapabilities) so the Master-only /cms page is hidden on a slave
• Build and Test — Complete (construction/build-and-test/build-and-test-summary.md); the earlier "no local SQL Server" assumption was disproven (this environment does have a reachable local instance) — full live master+slave connectivity, migrations, and status push/pull were all verified end-to-end, not just via automated tests

🟣 POST-COMPLETION FIXES (2026-07-04, same feature, live-testing follow-ups)

Running master and slave side by side surfaced several real gaps in the underlying master/slave protocol (owned by master-cms-module, exercised here for the first time by an actual second instance) and one local-dev-only cookie quirk. All fixed and verified; full detail in audit.md:

• Slave connection string / real appsettings.local.json for the slave
• Missing Core/Identity migration on the slave DB
• /cms page wrongly visible on a slave (→ module-capability gating, see Unit 2 above)
• CMS instance status badge styling now matches the dashboard badge
• Master-gate status not reflected on the slave's own dashboard (PersistentAvailabilityService now merges the master gate)
• Slave stuck on stale status after a restart (IntegrityCheckBackgroundService startup tick + status re-push)
• Slave stuck on stale status after being set Inactive (now releases the gate)
• Added the originally-specified slave-pull + fail-open (MasterStatusPollingBackgroundService, GET /api/v1/SlaveStatus)
• Local availability changes on a master-controlled slave now rejected (409) and the Settings UI locked, instead of a misleading "success"
• Refresh-token cookie collision between master/slave on localhost — explained as expected local-dev behavior (not fixed; production uses separate real domains)
• pnpm dev:all compound dev-server launcher added
• master-cms-module's own design docs corrected to match this as-built behavior (see that feature's audit.md)

All committed together in 0447993 — "Completes local-dev-master-slave-setup: dual-instance frontend tooling, module-capability gating, and master/slave protocol self-healing fixes" (219/219 backend tests, 213/213 frontend tests, both green).