Initial import of LogDarioSeq baseline

Establishes version control for the personal Logseq DB fork before
starting the server-client architecture migration and domain features
described in docs/agent-guide and the approved implementation plan.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

libs/index.d.ts

@@ -0,0 +1,5 @@
+import { ILSPluginUser } from './dist/LSPlugin'
+
+declare global {
+  var logseq: ILSPluginUser
+}