feat: sync internal updates for 0924

[pigeonligh]

Summary

Sync the latest internal RLark updates as of 2026-09-24.

This update spans the API definitions, control plane, data plane agents, networking, Web UI, deployment tooling, tests, and documentation.

Key Changes

• Extend Job, Task, Workflow, Node, and Pod CRD definitions.
• Add resource distribution and replication capabilities.
• Improve Job, Task, Workflow, Pod, and Node controller lifecycle handling.
• Add leader election support for control-plane components.
• Introduce a remote dialer implementation and improve cross-cluster networking.
• Improve Gateway APIs, authentication middleware, image registry management, system configuration, and cluster operations.
• Expand rlarkadm installation and component management capabilities.
• Improve the Web UI for jobs, workflows, clusters, storage, SSH keys, image registries, tags, filters, and system configuration.
• Split frontend styles into feature-oriented modules and improve responsive layouts.
• Update English and Chinese documentation, deployment examples, API references, screenshots, and architecture diagrams.
• Add extensive Go and frontend test coverage.
• Add coverage reporting utilities.

Scope

• API and generated Kubernetes clients
• RLark server and gateway
• Controller manager
• Cluster and node agents
• Cross-cluster networking
• Deployment and administration tooling
• React management UI
• English and Chinese documentation
• Unit and integration tests

Testing

The synchronized changes include new and updated tests covering:

• API type serialization
• Agent configuration and controllers
• Job, Task, Workflow, Domain, and replication controllers
• Distribution engine
• Gateway handlers and middleware
• Remote dialer and networking
• rlarkadm installation
• Web UI APIs, job operations, workflows, storage, routing, filters, and responsive layouts

Change Size

• 411 files changed
• 49,519 insertions
• 24,157 deletions