feat: add terminal session audit

[huanghongbo-hhb]

Summary

• add terminal session audit for pod exec, workflow debug, and SSH sessions
• record terminal IO as asciicast and expose session history, command records, replay, and terminate APIs

Why

• support audit trail and replay for host login and container debug operations

Main Changes

• hook terminal stdin/stdout/resize in pod exec, workflow debug, and SSH paths
• persist session metadata and command indexes in MongoDB
• stream cast files to object storage and return cast content for replay
• reuse existing masking logic for workflow credentials and referenced Kubernetes secrets

Risk / Compatibility

• introduces new system-level audit APIs and new MongoDB collections/indexes
• historical cast storage uses existing object storage, while session metadata remains in MongoDB

Test

• ? github.com/koderover/zadig/v2/pkg/shared/terminalio [no test files]
  ok github.com/koderover/zadig/v2/pkg/microservice/aslan/core/common/service/terminalaudit (cached) [no tests to run]
  ok github.com/koderover/zadig/v2/pkg/microservice/podexec/core/service (cached) [no tests to run]
  ? github.com/koderover/zadig/v2/pkg/tool/wsconn [no test files]
  ok github.com/koderover/zadig/v2/pkg/microservice/aslan/core/environment/service (cached) [no tests to run]
  ? github.com/koderover/zadig/v2/pkg/microservice/aslan/core/system/handler [no test files]
  ? github.com/koderover/zadig/v2/pkg/cli/initconfig/cmd [no test files]

Contact

• Contact: huanghongbo@koderover.com

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