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>

cli/spec/commands/search.mli

@@ -0,0 +1,20 @@
+type scope = Block | Page | Property | Tag
+type opts = { content : string }
+
+type parsed =
+  | Parsed_block of opts
+  | Parsed_page of opts
+  | Parsed_property of opts
+  | Parsed_tag of opts
+
+type action = {
+  scope : scope;
+  command : Command_id.t;
+  repo : Cli_primitive.repo;
+  graph : Cli_primitive.graph;
+  query : string;
+}
+
+val scope_of_parsed : parsed -> scope
+
+include Command_spec.S with type parsed := parsed and type action := action