Audit documentation language and links

[ChuanGz]

Summary

• improve English clarity and consistency across user and maintainer documentation
• repair malformed option-reference tables and align guidance with the current option contract
• replace stale generator paths, generated-project structure, release status, and E2E behavior
• align package-manager examples with npm repository bootstrap and the primary pnpm generated-app workflow
• add the roadmap to the documentation index and verify all local Markdown links

Why

Documentation still contained claims and paths from earlier generator layouts. Several option tables were also rendered incorrectly because option values were parsed as Markdown column separators. These issues could mislead users even though the link targets existed.

Validation

• npm run quality
• npm run docs:links
• npm run format:check
• git diff --check
• 47/47 tests pass