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/domain/property.mli

@@ -0,0 +1,42 @@
+type key =
+  | Key_ident of Cli_primitive.keyword
+  | Key_id of Cli_primitive.db_id
+  | Key_name of string
+
+type cardinality = One | Many
+
+type kind =
+  | Default
+  | Page
+  | Class
+  | Property
+  | Entity
+  | Node
+  | Date
+  | Url
+  | Checkbox
+  | Number
+  | Template
+  | Other of Cli_primitive.keyword
+
+type schema = {
+  kind : kind option;
+  cardinality : cardinality option;
+  hidden : bool option;
+  public : bool option;
+}
+
+type assignment = { key : key; value : Melange_edn_melange.any }
+
+type update_plan = {
+  update_tags : Selector.tag Rrbvec.t;
+  remove_tags : Selector.tag Rrbvec.t;
+  update_properties : assignment Rrbvec.t;
+  remove_properties : key Rrbvec.t;
+}
+
+val empty_update_plan : update_plan
+val parse_key : Melange_edn_melange.any -> key option
+val kind_of_string : string -> kind option
+val string_of_kind : kind -> string
+val cardinality_of_string : string -> cardinality option