photoshop_get_selection_bounds

Read the active pixel selection bounds in document pixels (read-only). Use when: verifying selection exists and its size/position before mask, fill, or recipe steps. Do NOT use when: creating or modifying a selection — use photoshop_select_rectangle or photoshop_select_subject. Returns: JSON { ok, summary, details: { has_selection, bounds?, context } }. Preconditions: active document. Side effects: none.