Function run_development_phase 

pub fn run_development_phase(
    ctx: &mut PhaseContext<'_>,
    start_iter: u32,
    resuming_from_development: bool,
) -> Result<DevelopmentResult>

Run the development phase.

This phase runs developer_iters iterations, each consisting of:

1. Planning: Create PLAN.md from PROMPT.md
2. Execution: Execute the plan
3. Cleanup: Delete PLAN.md

Arguments

• ctx - The phase context containing shared state
• start_iter - The iteration to start from (for resume support)
• resuming_from_development - Whether we’re resuming into the development step

Returns

Returns Ok(DevelopmentResult) on success, or an error if a critical failure occurs.