[BUG] Date fields within ARRAY<STRUCT> types are serialized as Epoch Days (integers) rather than ISO-8601 strings.

[pradeepDemoscanner]

Describe the bug
A clear and concise description of what the bug is.

When querying a column with a nested schema—specifically an Array of Structs containing a Date type—the result set returns the raw internal integer representation (number of days since 1970-01-01) instead of the expected YYYY-MM-DD format. This behavior breaks downstream consumers (like Power BI, Tableau, or custom APIs) that expect standard date strings within JSON/Struct outputs.

To Reproduce
Steps to reproduce the behavior:

1. Create a table with a nested date:
   CREATE OR REPLACE TABLE bug_repro AS SELECT ARRAY(STRUCT(CAST('2026-02-03' AS DATE) AS event_date)) AS nested_data;

2. Query the table:
   SELECT nested_data FROM bug_repro;

3. Observed Result: [{"event_date": 20490}]

Expected behavior
A clear and concise description of what you expected to happen.
Expected Result: [{"event_date": "2026-02-03"}] when queried using jar databricks-jdbc

Screenshots
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When executed the query in Azure databricks getting the result as
[{"event_date":"2026-02-03"}]

Client side logs
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Client Environment (please complete the following information):

• OS: [e.g. Windows] Mac
• Java version [e.g. Java 21]: Java 21
• Java vendor [e.g. OpenJDK]: corretto-21
• Driver Version [e.g. 3.1.1]: 3.2.1
• BI Tool (if used) [e.g. DBeaver]
• BI Tool version (if applicable) [e.g. 24.3.5]

Additional context
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