fix(ig): retry on connect timeout

fix(scheduler): use stdlib zoneinfo

fix(scheduler): rescheduling now works on HF Spaces

fix(scheduler): never block API event loop — mutex + thread pool

feat: trend filter, engagement metrics, duplicate protection, watermark consistency

feat: HF keep-alive, IG token reminder, auto hashtags, budget alerts, hashtag suggestions

feat: configurable posting times (IST), reels only for carousel posts

fix: pin scheduler timezone to Asia/Kolkata (IST)

feat: surface agent auto-improve steps to progress bar

diag: log exception type and IG API response to debug publish failure

fix: unpack _build_attempts dicts correctly in post_improver

fix: normalize api_base URLs to ensure https:// prefix

fix: add circuit breaker to embeddings service to silence 401 spam

Initial deployment to HF Spaces