feat(vault): initialize fresh instances with public example notes

deploy/data/vault/Getting Started/Welcome to RawMark.md

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+# A space of your own.
+
+Capture ideas. Connect thoughts. Keep writing with **RawMark**, your personal Markdown workspace.
+
+> Your notes. Your files. Your space.
+
+- [x] Create a home for your knowledge
+- [ ] Write down your next idea
+
+## Familiar Markdown
+
+Keep **bold** ideas, *small details*, and ==highlights== in one place.
+
+| What to capture | Where it belongs | Keep it moving |
+| --- | --- | --- |
+| Project plans | Projects | Take the next step |
+| Reading notes | Knowledge Base | Connect new ideas |
+
+## Keep ideas growing
+
+```typescript
+const notes = await collectIdeas()
+const garden = notes.map(idea => idea.grow())
+console.log('Keep writing, keep growing.')
+```