Add wiki sidebar navigation

_Sidebar.md

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+### familiar
+
+- [Home](Home)
+- [Getting Started](Getting-Started)
+- [Architecture](Architecture)
+- [Tool Reference](Tool-Reference)
+- [Write Safety](Write-Safety)
+- [Authentication & Scopes](Authentication-and-Scopes)
+- [Configuration](Configuration)
+- [Development & CI](Development-and-CI)