[Optimization] Add ordered(false) bulk insert to Java agent sample

[diberry]

Summary

Apply \ordered(false)\ + \MongoBulkWriteException\ handling to the Java vector search samples (\HNSW.java, \IVF.java, \DiskAnn.java), matching the bulk insert patterns already used by Python, TypeScript, .NET, and Go samples.

What to change

In each Java sample's \insertDataInBatches\ method:

1. Add \InsertManyOptions\ with \ordered(false)\ for parallel execution
2. Wrap \insertMany()\ in try/catch for \MongoBulkWriteException\
3. Track and log partial successes (inserted vs failed counts)

Pattern to follow (from existing TypeScript sample):

\\ ypescript
const result = await collection.insertMany(batch, { ordered: false });
\\

Java equivalent:

\\java
var insertOptions = new InsertManyOptions().ordered(false);
try {
collection.insertMany(documents, insertOptions);
totalInserted += documents.size();
} catch (MongoBulkWriteException e) {
var inserted = documents.size() - e.getWriteErrors().size();
totalInserted += inserted;
totalFailed += e.getWriteErrors().size();
}
\\

Files to modify

• \�i/vector-search-java/src/main/java/com/azure/documentdb/samples/HNSW.java\
• \�i/vector-search-java/src/main/java/com/azure/documentdb/samples/IVF.java\
• \�i/vector-search-java/src/main/java/com/azure/documentdb/samples/DiskAnn.java\

Background

• Extracted from closed PR Optimize MongoDB bulk insert operations and add developer guidance for AI samples #49 (bundled too many changes)
• Original issue: Identify mongo driver and insert method for each sample #48