feat(mol): add MOL type/function and PATTERN index

[862103595]

related:

• add DataType.Mol
• add FunctionType.MOL_FINGERPRINT
• add PATTERN index enum (v1/v2)
• support mol_smiles_data serialization and SMILES validation

[sre-ci-robot]

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[sre-ci-robot]

Welcome @862103595! It looks like this is your first PR to milvus-io/milvus-sdk-java 🎉

[liliu-z]

sdk-bulkwriter/src/main/java/io/milvus/bulkwriter/BulkWriter.java:1 The sdk-bulkwriter module is missing Mol type support entirely. verifyByDatatype in BulkWriter.java, schema construction in ParquetUtils.java, and the string serialization branch in ParquetFileWriter.java all need case Mol: branches added — without them, bulk import of Mol data will throw or silently fail.

[yhmo]

Found one correctness/test-coverage gap in the new MOL support that should be fixed before merging.

[yhmo]

Adding the inline note that failed to attach in the earlier review.

[yhmo]

The added test only covers FieldDataWrapper readback for mol_smiles_data. This PR also changes the write-side conversion paths in ParamUtils (checkFieldData, checkFieldValue, genScalarField, objectToValueField, valueFieldToObject) plus the V2 enum mapping for DataType.Mol(27), but none of those new paths are exercised here. Since MOL support is mostly serialization/deserialization plumbing, it would be safer to add at least one request-side test that inserts/upserts a MOL scalar value and one enum mapping assertion for code 27, otherwise a regression on the write path could still pass these tests.