fix(app-vite): audit Cordova mode and guide

[hawkeye64]

Summary

• audit the Cordova mode implementation, configuration types, and guide against current Quasar and Cordova behavior
• prevent builds for nonstandard Cordova targets from failing when no default output folder is defined
• correct Cordova target types and callback examples
• replace obsolete or unsafe setup and troubleshooting guidance with current diagnostics
• align build, plugin, analytics, publishing, icon, and configuration guidance
• offer both pnpm and npm commands where a global CLI installation is appropriate

Why

The Cordova guide had accumulated obsolete SDK paths, permissive device rules, old platform-specific instructions, and examples that had drifted from the implementation. The builder also assumed every accepted Cordova target had a predefined output-folder mapping.

Validation

• repository formatting and lint hooks passed for the committed files
• git diff --check upstream/dev...HEAD