vso: create initial draft feature request [#2597]

docs/features/vso/_assets/README.md

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+# VSO Assets
+
+This folder contains visual assets for the Vehicle Service Orchestrator (VSO) feature documentation.
+
+
+## Architecture Diagrams
+
+### VSO_architecture.svg
+**Used in:** [docs/features/vso/index.rst](../index.rst) - System Architecture section
+
+Main architecture diagram showing the Multi-node Scenario Evidence Layer:
+- **Data Inputs Layer:** Per-node signals from Runtime Plane, Diagnostics Module, and Platform Resources (purple boxes)
+- **VSO Core Modules:** Scenario Management, State Manager, Evidence Aggregation, Scenario Evidence Violation, Response Management (orange/yellow boxes)
+- **Output Layer:** OEM State Manager / Safety Manager integration and S-CORE Lifecycle handoff (green boxes)
+
+Key principle: VSO observes and generates evidence but does NOT execute or decide.
+
+### VSO_component_relationship.svg
+**Used in:** [docs/features/vso/index.rst](../index.rst) - Integration with S-CORE Components section
+
+Diagram showing the clear separation of concerns between:
+- **S-CORE Diagnostics / OpenSOVD** (blue) - raw signals, fault lifecycle
+- **VSO** (orange) - evidence generation, pipeline monitoring
+- **OEM State Manager / Safety Manager** (green) - decision-making
+- **S-CORE Lifecycle** (purple) - execution
+
+### VSO_evidence_state_matrix.svg
+**Used in:** [docs/features/vso/index.rst](../index.rst) - Evidence State Response Matrix section
+
+Visual representation of the Evidence State Response Matrix showing six evidence states:
+- **OK** (green): Normal execution, no action
+- **WATCH** (yellow): Light monitoring, minor deviations
+- **WARN** (orange): Focused debugging (30s), pre-snapshot, dashboard warning
+- **VIOLATED** (red): Intensive diagnostics (60s), snapshot freeze, critical alert
+- **INCOMPLETE** (purple): Missing signals, low confidence evidence
+- **RECOVERED** (blue): Return to normal, recovery package archived