Vapi bootstrap framework

Scaffold an entire Vapi voice-agent project from a single ROUGH_DRAFT.md spec. Works in an empty folder or alongside an existing Bun + TypeScript project. One bun run bootstrap after this skill finishes puts the whole fleet live in dashboard.vapi.ai.

What this skill produces

Project scaffolding (only created if absent — never overwritten):

• package.json — Bun + @vapi-ai/server-sdk + a bootstrap script
• .env.example — VAPI_PRIVATE_KEY placeholder + one slot per (scenario × language) tuple
• .gitignore — node_modules, .env*.local, OS junk

Framework spine (always created — architectural; every later change extends a slot here, never the spine itself):

• src/assistants/languages.ts — per-language voice + transcriber stack
• src/assistants/loadPrompt.ts — loadPrompt(scenarioId, languageId) composer
• src/assistants/scenarios/index.ts — the scenario registry
• src/assistants/buildAssistant.ts — composes a full Vapi assistant body for any (scenarioId, languageId) tuple
• src/assistants/prompts/shared/preambles/es.md — Spanish language preamble (extend with more languages later)