fix(doc-api): preserve XDATA and XRecord integrity

crates/ocs_doc_api/spec/entities.toml

@@ -471,7 +471,7 @@ description = "Extended record (XRecord): arbitrary DXF group-code/value pairs.
 name = "create_xrecord"
 args = [{ name = "spec", ty = "XRecordSpec" }]
 op = "CreateXRecord"
-returns = "Entity"
+returns = "XRecord"
 
 [[family.method]]
 name = "payload"
@@ -486,21 +486,6 @@ op = "SetXRecord"
 args = [{ name = "spec", ty = "XRecordSpec" }]
 returns = "()"
 
-# Cross-cutting: every Entity handle can read/write its own XDATA.
-[[family.method]]
-name = "xdata"
-kind = "query"
-query = "GetXData"
-args = [{ name = "application_name", ty = "&str" }]
-returns = "Option<XDataRecord>"
-
-[[family.method]]
-name = "set_xdata"
-kind = "op"
-op = "SetXData"
-args = [{ name = "application_name", ty = "&str" }, { name = "record", ty = "Option<XDataRecord>" }]
-returns = "()"
-
 # ============================================================================
 # Cross-cutting ops (generic handles + bulk) — documented in build.rs
 # ============================================================================