Build a complete, ready-to-run Meta ad: campaign → ad set (FULL targeting + budget + schedule + bidding) → creative → ad(s), ALL created PAUSED — it spends NOTHING until you activate the campaign with set_meta_campaign_status(confirm:true). This is the "create a campaign and put the ads on it" path. IMAGE, VIDEO (uploaded, transcoded and thumbnailed for you) and CAROUSEL (format:"carousel", 2–10 cards each with its own headline/description/link) all work. Targeting is the `targeting` object: geo down to cities with a radius, age, gender, interests, behaviours, custom audiences and lookalikes, languages, placements, devices and OS. For a conversion objective pass pixelId + conversionEvent and the ad set optimizes for that conversion. Schedule with startTime/endTime + dayparting; bid with bidStrategy + bidAmountUsd/minRoas; use lifetimeBudgetUsd (with endTime) for a fixed flight. Attach to an existing campaign with campaignId or an existing ad set with adSetId. Everything is READ BACK from Meta before you are told it exists — print the returned summary verbatim (it now carries Meta-rendered PREVIEW LINKS for the first ad, valid 24 hours — hand them to the user so they can see the ad; preview_meta_ad renders any ad in any placement). Needs ads-management on the connected account.