docs: migrate Obsidian vault

docs/99 meta/attachments/bases/unlinked mentions.base

@@ -0,0 +1,11 @@
+filters:
+  and:
+    - file.hasLink(this.asLink())
+    - not:
+        - this.hasLink(file.asLink())
+views:
+  - type: list
+    name: Unlinked Mentions
+    order:
+      - file.name
+    indentProperties: false

docs/99 meta/templates/checkmark.md

@@ -0,0 +1 @@
+✓

docs/99 meta/templates/note.md

@@ -0,0 +1,5 @@
+---
+date-created: {{date}} {{time}}
+---
+
+# {{title}}