Kann SuperX weg?

Build me a personal X posting cockpit inspired by SuperX. Requirements:

- Node + Express + better-sqlite3, one localhost web app; no accounts, no
  telemetry, all keys in .env.
- A composer with an AI draft panel: send my topic plus 20 of my own past
  posts (pasted once into voice.txt) to an LLM API so drafts sound like me,
  with tone buttons for punchier, shorter, thread.
- Slot-based queue: weekday posting times in my timezone from a config
  file; drafts fill the next free slot, drag to reorder, pin to exact
  datetimes. Thread support with per-post character counters.
- Publish via the X API v2 with node-cron, marking rows sent or failed
  before posting so nothing double-posts. Be blunt in the README: posting
  needs a paid X API tier, and that bill exists before the first post.
- Pull my recent post metrics (impressions, likes, replies) on a daily
  cron into SQLite and render a simple dashboard: per-post table plus a
  30-day sparkline drawn as inline SVG.
- A fallback copy-to-clipboard button per queued post so the tool stays
  useful without paying X anything.
- Out of scope, and say so in the README: viral post libraries, optimal
  timing models, auto-DMs, lead generation, and multi-account. Those are
  data and ToS problems, not code.
- README: X developer app setup, which paid tier posting needs, and the
  LLM key.