RDBC-1121 Add connectionStreamTimeout to subscription worker options

[M4xymm]

Issue link

https://issues.hibernatingrhinos.com/issue/RDBC-1121

Description

• Add connectionStreamTimeout to SubscriptionWorkerOptions (default 30 s, minimum 15 s)
• Values below 15 s throw InvalidArgumentException, matching the C# client
• Subscription socket fails with TimeoutException after that long without traffic
• Timeout covers TCP negotiation and the batch stream; the worker then reconnects
• Port Subscriptions_WithWaitForFree_ShouldNotDisconnectOnStreamTimeout and add a validation test

Type of change

• Bug fix
• Regression bug fix
• Optimization
• New feature
• Sync with the C# client (version x.y.z -> x.y.z)
• Dependency / tooling / CI update

Target branch and backports

• This PR targets the correct release branch (e.g. v7.2, v7.1, v7.0, v6.0)
• The change needs to be ported to other release branches. Please list them.
• No other release branch is affected

How risky is the change?

• Low
• Moderate
• High
• Not relevant

Backward compatibility

• Non breaking change
• Ensured. Please explain how has it been implemented?
• Breaking change (public API, exported types, default behavior). Please describe the migration path.
• Not relevant

Server compatibility

• Works with all RavenDB server versions covered by CI
• Requires a minimum server version. Please specify which one and make sure the tests are gated accordingly.
• Not relevant

Affected runtimes

• Node.js
• Bun
• Deno
• Cloudflare Workers
• Not runtime specific

Public API

• New or changed public API. New types are exported from src/index.ts (npm run check-exports passes).
• Version bump: package.json and CLIENT_VERSION in src/Http/RequestExecutor.ts (sync / release PRs only)
• No public API changes

Documentation update

• README.md has been updated
• No documentation update is needed

Testing by Contributor

• Tests have been added that prove the fix is effective or that the feature works
• Existing tests verify the correct behavior
• It has been verified by manual testing
• npm run lint, npm run build, npm run check-exports and npm run check-imports pass locally
• Tests have been run locally against a RavenDB server (RAVENDB_TEST_SERVER_PATH / RAVENDB_SERVER_VERSION)
• Runtime-specific changes have been verified on the affected runtime (Bun / Deno / Cloudflare Workers)

Dependencies

• New or updated runtime dependency. Please explain why it is needed and confirm it works on all affected runtimes.
• Dev dependency only
• No dependency changes

Is there any existing behavior change of other features due to this change?

• Yes. Please list the affected features/subsystems and provide appropriate explanation
• No