chore(spec): refresh api-surface snapshot for aggregation-policy exports (#2209)

#2208 added three @objectstack/spec/data exports (defaultAggregateFor,
isIncoherentAggregate, MEASURE_FIELD_TYPES) but did not regenerate the public
API-surface snapshot, so the `check:api-surface` gate failed on main. Intentional
addition: 0 breaking, 3 added.

Co-authored-by: Jack Zhuang <277994282+os-zhuang@users.noreply.github.com>

Author: xuyushun441-sys

packages/spec/api-surface.json

@@ -288,6 +288,7 @@
     "LocationCoordinates (type)",
     "LocationCoordinatesSchema (const)",
     "LogicalOperatorKey (type)",
+    "MEASURE_FIELD_TYPES (const)",
     "Mapping (type)",
     "MappingInput (type)",
     "MappingSchema (const)",
@@ -423,6 +424,7 @@
     "WindowSpec (type)",
     "WindowSpecSchema (const)",
     "canonicalizeSqlType (function)",
+    "defaultAggregateFor (function)",
     "defineCube (function)",
     "defineDatasource (function)",
     "defineMapping (function)",
@@ -434,6 +436,7 @@
     "isCompatible (function)",
     "isDateMacroToken (function)",
     "isFilterAST (function)",
+    "isIncoherentAggregate (function)",
     "missingFieldValues (function)",
     "objectForm (const)",
     "parseAutonumberFormat (function)",