MongoDistributedStore

MongoDB-backed DistributedStore.

Usage:

`MongoClient mongoClient = MongoClients.create("mongodb://localhost:27017");

HarnessAgent agent = HarnessAgent.builder()
.name("my-agent")
.model("dashscope:qwen-plus")
.distributedStore(MongoDistributedStore.create(mongoClient, "agentscope"))
.build();
`

This configures:

• MongoAgentStateStore — agent session state in MongoDB

• MongoBaseStore — workspace filesystem KV in MongoDB

• MongoSandboxExecutionGuard — sandbox execution locking in MongoDB

• MongoSnapshotSpec — sandbox workspace snapshots in MongoDB

When created via #create(MongoClient), the caller owns the MongoClient lifecycle; #close() will NOT close the client. When created via #fromConnectionString(String), the store owns the client and #close() will close it. In both cases, #close() also cascades to shut down any cached MongoSandboxExecutionGuard executor.