Sync delta specs from a change to main specs. This is an agent-driven operation - you will read delta specs and directly edit main specs to apply the changes. This allows intelligent merging (e.g., adding a scenario without copying the entire requirement). Store selection: If the user names a store (a store is a standalone OpenSpec repo registered on this machine) or the work lives in one, run to discover registered store ids, then pass on the commands that read or write specs and changes ( , , , , , , , , , , ). Once selected, treat as sticky for the rest of the workflow. Every unscoped exam…