feat: Document completed tasks across multiple components

- Added completed tasks documentation for Scheduler WebService, ImpactIndex, Models, Queue, Storage.Mongo, Worker, Signals, Signer, UI, Zastava.Observer, Zastava.Webhook, Zastava.Core, Cryptography.Kms, Cryptography, and Plugin.
- Each task includes ID, status, owners, dependencies, descriptions, and exit criteria to ensure clarity and traceability.
- Enhanced integration and unit testing coverage across various components to validate functionality and compliance with specifications.

ops/licensing/TASKS.completed.md

@@ -0,0 +1,5 @@
+# Completed Tasks
+
+| ID | Status | Owner(s) | Depends on | Description | Exit Criteria |
+|----|--------|----------|------------|-------------|---------------|
+| DEVOPS-LIC-14-004 | DONE (2025-10-26) | Licensing Guild | AUTH-MTLS-11-002 | Implement registry token service tied to Authority (DPoP/mTLS), plan gating, revocation handling, and monitoring per architecture. | Token service issues scoped tokens, revocation tested, monitoring dashboards in place, docs updated. |