Character Insights: Per-section toggle and auto-population controls

Two enhancements that would make Insights significantly more flexible:

First, the ability to toggle User, Character, and Relationship on/off independently. If a user plays differently in-character each time, they could disable User while still benefiting from Character and Relationship. For more complex multi-character builds, disabling Character alone would make sense. Right now it's all-or-nothing, which limits how useful it can be across different play styles.

Second, per-section control over auto-population. Some users will want the system to extract and fill certain sections automatically while manually curating others. Being able to enable or disable auto-population for each section separately would give users much finer control over the data the model is working with.

P.S. Character Insights is a really well-designed addition! The three-axis structure (User, Character, Relationship) reflects genuine thought about what structured data actually helps a model maintain character coherence. Excited to see where this goes.