¿Puedo vibecodear PromptDrive?

Build me a local prompt library to replace PromptDrive. Requirements:

- A single-process Node app (Express + better-sqlite3, vanilla HTML/CSS/JS, no build
  step) serving a web UI on localhost:4321.
- Prompts have a title, body, notes, a folder, and tags. Store everything in one
  SQLite file next to the app; create the schema on first run.
- Full-text search across title, body, and tags with SQLite FTS5, filtering live as
  I type.
- Support {{variable}} placeholders in prompt bodies: opening a prompt renders one
  input per distinct placeholder and shows the filled prompt update live.
- One-click copy of the filled prompt with navigator.clipboard and a brief copied
  confirmation.
- Import and export the whole library as one JSON file from the UI; also export any
  folder as Markdown, one file per prompt.
- Keyboard-first: / focuses search, arrow keys move through results, Enter opens,
  c copies.
- No accounts, no cloud, no telemetry, no API calls: this is a filing cabinet, not a
  chat client. Deliberately out: team sharing, comments, the browser extension, and
  running prompts against models.
- Include a README with install and run steps, backup advice (copy the .sqlite
  file), and a seed script that loads five example prompts.