Complete C# rewrite with working game in Editor (#6)

* Refactor collectable components to C# and update resource scripts for consistency

* Update resource paths and refactor properties for consistency

* Refactor UI components to inherit from Control and update node paths for consistency

* Update node paths and group assignments for consistency across scenes

* Refactor GameManager and PlayerDeathComponent for improved state management and logging; update scene connections for player death handling

* Add PhantomCamera components and UI elements for improved scene management; refactor existing components for better integration

* Refactor skill components and update resource paths for consistency; enhance skill management in scenes

* Add new UID files and update scene configurations for dialogue components; refactor skill management and input handling

* Add next level command and refactor player retrieval in GameManager; update scene files for consistency

* Add skill upgrade system and refactor skill components for enhanced functionality; update resource paths and configurations

* Enhance ChargeProgressBar and Marketplace functionality; add owner exit handling and update skill button states

* Refactor ChargeProgressBar and SkillManager; update skill handling and improve component interactions

* Refactor player and level configurations; streamline FlipPlayerComponent and reposition Spaceship Enter

addons/limbo_console/CONTRIBUTING.md

@@ -0,0 +1,15 @@
+# Contributing
+
+Thanks for your interest in contributing. Please follow these guidelines to keep the project consistent and maintainable in the long-term.
+
+## Vision
+
+- This is a simple text-based interface. Follow the [KISS principle](https://en.wikipedia.org/wiki/KISS_principle) – keep the code simple and easy to maintain, abstractions minimal, and the API easy to use without reading a manual.
+- Don't run any logic if the console is closed or hidden.
+
+## Code Style & Recommendations
+
+- Follow the official [GDScript Style Guide](https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/gdscript_styleguide.html).
+- Use [static typing](https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/static_typing.html) wherever possible.
+- Apply the 80/20 rule: if a feature only benefits a small number of users, make it optional or don’t include it.
+- To avoid unnecessary whitespace changes, please enable this setting in Godot: `Editor Settings > Text Editor > Behavior > Files > Trim Trailing Whitespace on Save`