Can I vibecode SuperX?

Add a SuperX importer to the scheduler in this folder. Requirements:

- A command `x import-superx <file>` that reads JSON from `superx posts:analytics --since
  <date>` or the GET /v1/posts/analytics endpoint, and prints the keys it found first.
- Store each post with its X post id, text, date and metrics as an imported snapshot.
- Skip posts already present; running twice changes nothing.
- A second command that reads the scheduled-posts JSON from GET /v1/scheduled-posts and
  recreates the queue in my time zone, with a dry run.
- Update the README with how to create a SuperX API key and the 60-reads-a-minute limit.

Add posting-time suggestions to the scheduler in this folder. Requirements:

- From the stored snapshots, compute average impressions per weekday and hour in my time zone.
- Ignore any weekday and hour with fewer than five posts, and say so on the page.
- Show the top three slots and let me schedule a draft into one with a click.
- Write the calculation as a pure function with tests for ties and empty data.
- Update the README.

Add Bluesky cross-posting to the scheduler in this folder. Requirements:

- BSKY_HANDLE and BSKY_APP_PASSWORD in .env, using `@atproto/api`.
- A per-post checkbox that also posts to Bluesky when the X post goes out; threads map to reply chains.
- Split text that is over 300 characters at sentence breaks and attach images within Bluesky's size limit.
- A failure on one network never blocks the other; show each result in the queue.
- Update the README.

Add evergreen recycling to the scheduler in this folder. Requirements:

- Mark any published post as evergreen from the stats table.
- Every Monday, propose up to three evergreen posts not published in the last 90 days, ranked
  by impressions, as drafts in the queue; nothing posts without my approval.
- Skip posts that look time-sensitive (a date, today, this week), judged by a keyword list in the code.
- Update the README.