Feature/analytics agent cli

[zhaxinmeng]

Issue for this PR

Closes #

Type of change

• New feature

What does this PR do?

Adds a new analytics-agent CLI command group that exposes the Analytics Agent (DataGPT) REST APIs via cz-cli.

The new command covers:

• Datasource management — list, create, update, delete datasources; browse schema, search/show tables, load data
• Domain management — list, create, update, delete domains; add/remove tables from a domain
• Session operations — list sessions, create a session (requires --domain-id), run a natural-language query (requires --question-id), poll for results, stop a query

Key implementation details:

• Session creation requires domainId; in-session queries require questionId — these constraints are enforced at the CLI argument level
• Session-related routes use a separate openSessionAuth token distinct from the standard API auth
• Route paths are constructed dynamically from CLI args with proper URL encoding
• Profile store extended to read agentEndpoint for routing analytics-agent requests separately from the main Lakehouse endpoint

How did you verify your code works?

• Added e2e command surface test covering all new subcommands (test/e2e-command-surface.ts)
• Added profile-store.test.ts to cover agentEndpoint read logic
• Manually tested against a running Analytics Agent service

Screenshots / recordings

N/A — CLI-only change

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR