Update memo MaxLength to platform maximum (1048576)

Author: Abel Milash

.claude/skills/dataverse-sdk-use/SKILL.md

@@ -249,7 +249,7 @@ table_info = client.tables.create(
 #### Supported Column Types
 Types on the same line map to the same exact format under the hood
 - `"string"` or `"text"` - Single line of text
-- `"memo"` or `"multiline"` - Multiple lines of text (4000 character default)
+- `"memo"` or `"multiline"` - Multiple lines of text (up to 1,048,576 characters)
 - `"int"` or `"integer"` - Whole number
 - `"decimal"` or `"money"` - Decimal number
 - `"float"` or `"double"` - Floating point number

src/PowerPlatform/Dataverse/claude_skill/dataverse-sdk-use/SKILL.md

@@ -249,7 +249,7 @@ table_info = client.tables.create(
 #### Supported Column Types
 Types on the same line map to the same exact format under the hood
 - `"string"` or `"text"` - Single line of text
-- `"memo"` or `"multiline"` - Multiple lines of text (4000 character default)
+- `"memo"` or `"multiline"` - Multiple lines of text (up to 1,048,576 characters)
 - `"int"` or `"integer"` - Whole number
 - `"decimal"` or `"money"` - Decimal number
 - `"float"` or `"double"` - Floating point number

src/PowerPlatform/Dataverse/data/_odata.py

@@ -1380,7 +1380,7 @@ def _attribute_payload(
                 "SchemaName": column_schema_name,
                 "DisplayName": self._label(label),
                 "RequiredLevel": {"Value": "None"},
-                "MaxLength": 4000,
+                "MaxLength": 1048576,
                 "FormatName": {"Value": "Text"},
                 "ImeMode": "Auto",
             }

tests/unit/data/test_odata_internal.py

@@ -537,11 +537,11 @@ def setUp(self):
         self.od = _make_odata_client()
 
     def test_memo_type(self):
-        """'memo' should produce MemoAttributeMetadata with MaxLength 4000."""
+        """'memo' should produce MemoAttributeMetadata with MaxLength 1048576."""
         result = self.od._attribute_payload("new_Notes", "memo")
         self.assertEqual(result["@odata.type"], "Microsoft.Dynamics.CRM.MemoAttributeMetadata")
         self.assertEqual(result["SchemaName"], "new_Notes")
-        self.assertEqual(result["MaxLength"], 4000)
+        self.assertEqual(result["MaxLength"], 1048576)
         self.assertEqual(result["FormatName"], {"Value": "Text"})
         self.assertNotIn("IsPrimaryName", result)