refactor: modularize navigation and extract business logic to ViewModels

[isaacsa51]

Description

Integrates detekt static analysis into CI/CD pipelines and configures it with thresholds tuned for this Android/Compose codebase.

The formatting ruleset (MaxLineLength, Indentation, etc.) is excluded via disableDefaultRuleSets = true because the Gradle plugin does not support disabling formatting rules individually via YAML. Formatting is cosmetic and already handled by KtLint in the IDE.

Change strategy

Deocuple existing screens to follow proper MVI implementation and architecturing.

Implemented

• Created config/detekt/detekt.yml with per-ruleset thresholds and rule-level settings
• Created config/detekt/detekt-baseline.xml (empty — no pre-existing violations against tuned config)
• Created contract, UIState and Viewmodel Into screens like Editor, MainScreen and Editor
• Decoupled several files like the ones said previously,

Working demo

App is running.

Testing

• Added/updated tests when applicable
• Added screenshots or screen recordings for UI changes

Notes

• Formatting rules excluded (disableDefaultRuleSets = true): The Gradle plugin does not support a formatting: YAML key, and there is no excludeRules API. The only way to drop formatting rules is to drop all default rulesets. Formatting (indentation, line length, trailing whitespace) is cosmetic — KtLint handles it in the IDE. If you want to enforce formatting in CI, use the detekt CLI tool directly instead of the Gradle plugin.