Generate prompt suggestions

Starts a suggestion run with one of the generators behind the app's Add prompts wizards and answers 202 with the run. website writes suggestions from the scraped website (80% non-brand, 20% brand; up to 100 per project, then ERR_LIMIT_REACHED), keyword from a keyword or the project profile (optionally around a competitor), topic from a topic, reddit from Reddit discussions of a topic or brand, paa from Google People Also Ask (up to 5 keywords, counted against the account's 24-hour lookup allowance), reputational from brand reputation questions, translate from the project's prompts of another locale, search_console from the connected property's top queries of the last 28 days (Growth plan or above, ERR_PLAN_REQUIRED). The suggestions land in the Suggested prompts queue; poll GET /prompt_generations/{id}, then accept the ones you want with POST /suggested_prompts/accept. Nothing is tracked until accepted. The request is validated before the run starts, and refused with ERR_LIMIT_REACHED when the plan has no prompt slot left, ERR_INVALID_PARAM with error.meta.reason pitch_prompts_frozen for a launched pitch project, whose prompts are fixed, or ERR_QUOTA_EXCEEDED after 60 runs in an hour (the per-user prompt suggestion allowance, shared with project setup). Requires a read_write scope API key and, for team members, create access to Prompts.