Add execution waves documentation and function-level evidence readiness memo

- Created `execution-waves.md` to outline the execution waves for sprints, detailing shared prerequisites, parallelism guidance, and specific sprints involved in each wave.
- Added `function-level-evidence.md` to capture the requirements for stable function-level evidence in Stella Ops scanners, including goals, scope, advisory requirements, workstreams, schema/API touchpoints, and a handoff checklist for the next agent.

docs/implplan/SPRINT_150_scheduling_automation.md

@@ -4,4 +4,13 @@ Active items only. Completed/historic work now resides in docs/implplan/archived
 
 This file now only tracks the scheduling & automation status snapshot. Active backlog lives in Sprint 151+ files.
 
+# Wave coordination
+
+| Wave | Guild owners | Shared prerequisites | Status | Notes |
+| --- | --- | --- | --- | --- |
+| 150.A Orchestrator | Orchestrator Service Guild · AirGap Policy/Controller Guilds · Observability Guild | Sprint 120.A – AirGap; Sprint 130.A – Scanner; Sprint 140.A – Graph | TODO | Pending confirmation that Scanner surface artifacts are ready; keep job telemetry work prepped for fast start. |
+| 150.B PacksRegistry | Packs Registry Guild · Exporter Guild · Security Guild | Sprint 120.A – AirGap; Sprint 130.A – Scanner; Sprint 140.A – Graph | TODO | Blocked on Orchestrator tenancy scaffolding; specs are ready once 150.A flips to DOING. |
+| 150.C Scheduler | Scheduler WebService/Worker Guilds · Findings Ledger Guild · Observability Guild | Sprint 120.A – AirGap; Sprint 130.A – Scanner; Sprint 140.A – Graph | TODO | Impact index improvements need Graph overlays; hold until 140.A status improves. |
+| 150.D TaskRunner | Task Runner Guild · AirGap Guilds · Evidence Locker Guild | Sprint 120.A – AirGap; Sprint 130.A – Scanner; Sprint 140.A – Graph | TODO | Execution engine upgrades staged; start once Orchestrator/Scheduler telemetry baselines exist. |
+
 # Sprint 150 - Scheduling & Automation