feat: add module name lookup for module get and database create

[joshrotenberg]

Summary

This PR adds the ability to look up modules by name instead of UID, making it easier to work with modules in Redis Enterprise.

Feature 1: --name flag for enterprise module get

Look up modules by name instead of requiring the UID:

# Before (required UID)
redisctl enterprise module get abc123-uid

# After (can use name)
redisctl enterprise module get --name ReJSON
redisctl enterprise module get --name search

Features:

• Case-insensitive matching
• Helpful suggestions on partial matches (e.g., "Did you mean: ReJSON, RedisJSON?")
• Clear error with version info if multiple modules match

Feature 2: --module flag for enterprise database create

Specify modules by name when creating a database:

# Before (required JSON with module_list)
redisctl enterprise database create --name mydb --memory 1073741824 \
  --data '{"module_list": [{"module_name": "search"}, {"module_name": "ReJSON"}]}'

# After (simple flags)
redisctl enterprise database create --name mydb --memory 1073741824 \
  --module search --module ReJSON

Features:

• Auto-resolves module names to the proper module_list format
• Supports module args via colon syntax: --module search:ARGS
• Can be repeated for multiple modules
• Case-insensitive matching with helpful error messages
• Validates modules exist before creating database

Testing

• All existing tests pass
• Manually tested CLI help output shows new options correctly

Files Changed

• crates/redisctl/src/cli/enterprise.rs - Added --module flag to database create
• crates/redisctl/src/commands/enterprise/module.rs - Added --name flag to module get
• crates/redisctl/src/commands/enterprise/module_impl.rs - Module name resolution logic
• crates/redisctl/src/commands/enterprise/database.rs - Pass modules to create handler
• crates/redisctl/src/commands/enterprise/database_impl.rs - Module resolution in database create