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/debug.mli

@@ -0,0 +1,25 @@
+type selector =
+  | By_id of Cli_primitive.db_id
+  | By_uuid of Cli_primitive.uuid
+  | By_ident of Cli_primitive.keyword
+
+type opts = {
+  id : Cli_primitive.db_id option;
+  uuid : Cli_primitive.uuid option;
+  ident : Cli_primitive.keyword option;
+}
+
+type parsed = Parsed_pull of opts
+
+type action =
+  | Debug_pull of {
+      repo : Cli_primitive.repo;
+      graph : Cli_primitive.graph;
+      lookup : selector;
+      selector : Melange_edn_melange.any;
+    }
+
+val parse_ident_option : string -> Cli_primitive.keyword Error.build_result
+val resolve_selector : opts -> selector Error.build_result
+
+include Command_spec.S with type parsed := parsed and type action := action