fix(enterprise): cluster get command fails with "error decoding response body"

[joshrotenberg]

Problem

The enterprise cluster get command fails with "error decoding response body" even though the raw API call works.

Steps to Reproduce

# This fails
redisctl enterprise cluster get

# Error: Connection error: error decoding response body

# But this works
redisctl api enterprise get /v1/cluster

Expected Behavior

The typed wrapper command should parse and display cluster information correctly.

Likely Cause

Type definition mismatch between the Rust struct and the actual API response. The /v1/cluster endpoint returns many fields that might not be properly mapped in the type definitions.

Acceptance Criteria

• enterprise cluster get command works without errors
• Output can be filtered with -q flag
• Add integration test for this command

Part of #315

[joshrotenberg]

Fixed in PR #327