fix: stop fabricating API-call success in /api/publish and daily scheduler

/api/publish no longer claims a REST API call was made to each platform
(api_status/api_payload/api_endpoint_used removed) - it only ever built
local share-intent URLs and copy-paste text, so status is now
DRAFT_READY, matching reality.

triggerDailyAutoPost() no longer fakes AUTO_DISPATCH_SUCCESS across 10
platforms. It now does what it can actually do: re-scrape real sources,
re-run the ML pipeline, and stage the top realization as a draft
(status DRAFT_GENERATED) for the user to review and post themselves.