fix(perstack): bundle @perstack/tui-components to fix npm install failure

[FL4TLiN3]

Summary

• Bundle private @perstack/tui-components package into CLI build using tsup's noExternal option
• Move @perstack/tui-components from dependencies to devDependencies since it's now bundled

Problem

npx -y perstack was failing because @perstack/tui-components is a private package (private: true) but was listed as a runtime dependency. When pnpm publishes, it converts workspace:* to fixed versions, causing npm to try to fetch a package that doesn't exist in the registry.

Solution

Bundle the private package into the CLI build so it doesn't need to be published separately.

Test plan

• Local build succeeds
• After merge and release, verify npx -y perstack --help works

🤖 Generated with Claude Code

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Codecov Report

✅ All modified and coverable lines are covered by tests.

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