feat: Add comprehensive documentation for internal Fidelity apps and tools, enhancing navigation and context within the workspace

vault/03-context/systems/vault.md

@@ -0,0 +1,38 @@
+---
+type: system
+project: fidelity
+status: active
+systems: []
+workstreams: []
+people: []
+related: []
+tags:
+  - system
+  - fidelity
+updated: 2026-04-17
+---
+
+# Vault
+
+## Role
+
+- Internal Fidelity app/tool named Vault.
+
+---
+
+## Stable Patterns
+
+- Base note only; keep it separate from this workspace's own `vault/` directory because the names collide.
+- Add real purpose and usage patterns gradually as they become clear.
+
+---
+
+## Risks
+
+- Name collision with the workspace's canonical memory vault can cause confusion in notes and communication.
+
+---
+
+## Related Context
+
+- `vault-preprod.md`