[FEAT] Persistent node positions: Option to retain manual layout when toggling connection types #6

Post-release reflection: After testing the new v0.3.0 features on larger projects, I noticed that the increased complexity of connections makes layout stability even more critical.

⚠️ Prerequisite

• I have searched the existing issues to ensure this is not a duplicate.

Feature Proposal 🚀

Need to add a mechanism to prevent automatic layout recalculation and nodes reset on the Component Tree when the user changes visibility settings for different connection types.

Problem Statement 🤔

Currently, whenever a user toggles connections visibility settings the Component Tree graph performs a full layout reset. This causes several issues:

• Loss of Mental Map: If a user has manually arranged nodes to better understand a specific part of the architecture, an accidental or necessary settings change destroys this "spatial context".
• Workflow Interruption: Users have to arrange the graph from scratch after every adjustment in the settings.
• Entropy: Instead of a controlled flow, the user faces unpredictable movement of nodes, which contradicts the core goal of the tool.

Proposed Solution ✨

Add a "Lock Layout" or "Retain Positions" toggle within the Layers & Connections settings popover.

Behavior:

• When ON – Retain: Changing connection visibility or adding/removing external entities only adds or removes lines/nodes, while existing nodes stay in their manually assigned or current coordinates. The graph should not trigger a global shuffle and re-rendering.
• When OFF – Reset/Auto: The current behavior remains – the graph recalculates the optimal layout for the new set of visible entities.