v0.27.1

Improved

• Rename claude_model/--claude-model to task_model/--task-model for symmetry with review_model/--review-model #284 @umputun
• Pass task model to plan mode (was missing in #272)
• Clarify docs that model flags are passed to custom wrappers (may be ignored or implemented)

Fixed

• stripFlag now handles --flag=value and bare --flag forms, prevents duplicate --model in claude_args #284 @umputun