Multi-Tenant Schedule Isolation

[makr-code]

Context

This issue implements the roadmap item 'Multi-Tenant Schedule Isolation' for the maintenance domain. It is sourced from the consolidated roadmap under 🟢 Low Priority — Future (v1.9.0+) and targets milestone v2.0.0.

Primary detail section: Multi-Tenant Schedule Isolation

Goal

Deliver the scoped changes for Multi-Tenant Schedule Isolation in src/maintenance/ and complete the linked detail section in a release-ready state for v2.0.0.

Detailed Scope

Multi-Tenant Schedule Isolation

Priority: Low
Target Version: v2.0.0

All schedules currently share a single global namespace and window. In a SaaS deployment, different tenants need independent maintenance windows and quotas.

Implementation Notes:

• [ ] Add MaintenanceScheduleEntry::tenant_id (optional; empty = global/system schedule).
• [ ] Per-tenant window enforcement: tenant's schedule fires only when the current hour is within that tenant's configured maintenance window, loaded from the tenant config.
• [ ] Per-tenant quota: max N concurrent running maintenance jobs per tenant; enforced in executeSchedule().
• [ ] Admin API: GET /api/v1/maintenance/schedules?tenant_id={id} filters by tenant.

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Acceptance Criteria

• Add MaintenanceScheduleEntry::tenant_id (optional; empty = global/system schedule).
• Per-tenant window enforcement: tenant's schedule fires only when the current hour is within that tenant's configured maintenance window, loaded from the tenant config.
• Per-tenant quota: max N concurrent running maintenance jobs per tenant; enforced in executeSchedule().
• Admin API: GET /api/v1/maintenance/schedules?tenant_id={id} filters by tenant.

Relationships

• Roadmap row: Enable PPTX text extraction in build system #253 (🟢 Low Priority — Future (v1.9.0+))
• Depends on: none identified during generation.
• Part of: consolidated roadmap delivery tracking.

References

• src/ROADMAP.md
• src/maintenance/FUTURE_ENHANCEMENTS.md#multi-tenant-schedule-isolation
• Source key: roadmap:253:maintenance:v2.0.0:multi-tenant-schedule-isolation

Generated from the consolidated source roadmap. Keep the roadmap and issue in sync when scope changes.