Merge pull request #3 from IIEleven11/copilot/fix-character-card-issues

Add error handling for device settings save

Move device setup to UI sidebar, remove modal setup flow

Clean up code review feedback: fix redundant fallback logic

Add user name customization and increase character viewer size

Improve placeholder replacement with regex for better performance

Fix character card bugs: avatar transfer, viewer/editor, and placeholder support

Initial plan

Merge pull request #1 from IIEleven11/copilot/add-character-card-upload

Remove __pycache__ and my_settings.json from git tracking

Fix code review issues: move imports to top of file

Add documentation for character card feature

Add character card spec v2 support for import/export

Initial plan

first commit