Store user's `score` history

[nathanleiby]

Reason: want to collect data over time to permit longitudinal analysis.

Want to emit minimal useful data: score, BPM, loop_id, datetime

First pass is to write these anywhere. I've started here: https://github.com/nathanleiby/drum-break/commit/16b22397be38c79a9f68e13faeb25f14957531ae

• When should data be saved?
  • on exit (click "x")
  • on "save" (press "s" explicitly)
  • after each loop completes? <-- this is the current approach
• Where should we save the data?
  • save user timing data to a file (e.g. start with flatfile, someday a DB)
    • e.g. dump to a JSON
      1. the loop voices itself
      2. the users's input data
      3. worry about visualizing and cleaning later.. this is first pass on session over session data

Related:

• (bug?) Investigate score value (0.0 to 1.0). Values seem fishy.
• (future) write to SQLlite DB or similar
  • Turso - quickstart
  • Upstash