Add 56 JDBC spec integration tests with comprehensive DatabaseMetaData coverage

[gopalldb]

Summary

• Adds 56 new integration tests across 5 test files to close JDBC spec coverage gaps
• Includes comprehensive DatabaseMetaData testing following Snowflake's "mega-assertion" pattern (~180 assertions covering all boolean/int/string property methods)
• All tests use the WireMock record-replay fake service infrastructure with both SEA and Thrift recordings

New tests by file:

File	New Tests	Coverage Area
MetadataIntegrationTests	25	All boolean properties, string/int properties, ResultSet-returning methods (getTypeInfo, getProcedures, getFunctions, getImportedKeys, getExportedKeys, getCrossReference, etc.), wrapper/lifecycle
ResultSetIntegrationTests	10	Type getters: getBoolean, getByte, getShort, getLong, getFloat, getDouble, getBigDecimal, getDate, getTimestamp, getObject
PreparedStatementIntegrationTests	7	Type setters: setBoolean, setLong, setFloat, setDouble, setBigDecimal, setDate, setTimestamp
ExecutionIntegrationTests	4	Statement utilities: fetchDirection, enquoteLiteral, enquoteIdentifier, isSimpleIdentifier
ConnectionIntegrationTests	3	Connection attributes: autoCommit default, isReadOnly, transactionIsolation

Verification results:

• SEA REPLAY: All tests pass (0 failures)
• Thrift REPLAY: All tests pass (8 metadata tests skipped as SEA-only due to Thrift recording limitations)

Test plan

• All 56 new tests pass in SEA REPLAY mode
• All tests pass in Thrift REPLAY mode (with expected skips)
• No regressions in existing tests
• WireMock recordings committed for both SEA and Thrift modes

🤖 Generated with Claude Code

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