Create a Performance Max campaign (paused)

Creates a whole Performance Max campaign in one atomic change: budget, campaign, location targeting, asset group, every text and image asset, and optional search themes and audience signal. The campaign is created PAUSED and its asset group enabled inside it, so nothing serves and nothing is spent until the campaign is turned on, and turning it on launches everything. Report that with the two links the result gives (Google Ads and the campaign's page in Adako), and offer "enable all": google_resume_campaign turns the campaign on in one approval. Use when: the user has given a budget, a landing page, the copy, the images and the countries — and understands what Performance Max is: one campaign that spends across Search, Shopping, YouTube, Display, Discover, Gmail and Maps with very little per-channel control or reporting. Do not use when: anything is missing or invented. Google needs at least 3 headlines, 1 long headline, 2 descriptions, a business name, a landscape image, a square image and a square logo; the tool refuses with a plain list of what is missing rather than sending a request that fails halfway. Do not use it when a Search campaign is what the user actually needs — Performance Max cannot be steered by keyword and will happily cannibalise an existing brand campaign. Images may be asset ids (from google_list_assets) or https URLs, which are downloaded, measured against Google's aspect-ratio rules and uploaded in the same change. Locations must be ids from google_resolve_locations; they reach people in or regularly in those places (Presence) unless location_targeting is PRESENCE_OR_INTEREST. Final-URL expansion is switched off, so traffic goes to the page you named. Text limits count each Chinese, Japanese or Korean character as 2, and the daily budget is rounded to the smallest amount Google bills in the account currency. If anything is rejected, nothing at all is created: there is no half-built campaign to clean up. If you are unsure which account, campaign or period the user means, ask them — do not guess ids or dates.