stabilize tests

docs/modules/scheduler/TASKS.md

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+# Scheduler Module Task Board
+
+This board mirrors active Scheduler sprint(s). Update alongside the sprint tracker.
+
+Source of truth: docs/implplan/SPRINT_*.md.
+
+| Task ID | Status | Notes |
+| --- | --- | --- |
+| TBD | TODO | Populate from active sprint. |

docs/modules/scheduler/implementation_plan.md

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+# Scheduler Implementation Plan
+
+## Purpose
+Provide a living plan for Scheduler deliverables, dependencies, and evidence.
+
+## Active work
+- Track current sprints under `docs/implplan/SPRINT_*.md` for this module.
+- Update this file when new scoped work is approved.
+
+## Near-term deliverables
+- TBD (add when sprint is staffed).
+
+## Dependencies
+- `docs/modules/scheduler/architecture.md`
+- `docs/modules/scheduler/README.md`
+- `docs/modules/platform/architecture-overview.md`
+
+## Evidence of completion
+- Code changes under `src/Scheduler/**`.
+- Tests and fixtures under the module's `__Tests` / `__Libraries`.
+- Docs and runbooks under `docs/modules/scheduler/**`.
+
+## Notes
+- Keep deterministic and offline-first expectations aligned with module AGENTS.