fix(app): publish single docker-git dist without workspace lib runtime dep

[skulidropek]

Summary

• switch packages/app docker-git build from tsc to Vite SSR bundle for src/docker-git/main.ts
• add dedicated Vite config that aliases @effect-template/lib to local ../lib/src so CLI is bundled into one dist artifact
• move @effect-template/lib from dependencies to devDependencies to prevent npm install from requesting a non-published package
• add prepack to always build docker-git dist before publish/pack

Why

npm i -g @prover-coder-ai/docker-git failed with 404 for @effect-template/lib@1.0.0.
This PR removes that runtime dependency from published package and keeps a single distributable CLI artifact.

Verification

• pnpm -C packages/app build
• pnpm -C packages/app test
• npm pack in packages/app and inspect packed package.json (@effect-template/lib is absent in runtime deps)
• install from packed tarball and run dist/src/docker-git/main.js --help

Closes #76