Fallback to GitHub handle for names with CJK characters

[Copilot]

The badge bitmap fonts only support ASCII/Latin-1 (code points ≤255), causing CJK characters to render as placeholder boxes.

Changes

• Added has_unsupported_chars() to detect characters outside the Latin-1 range
• Modified name display to fall back to GitHub handle when unsupported characters detected
• GitHub handles are ASCII-only by platform requirement, guaranteeing renderable text

Implementation

def has_unsupported_chars(text):
    """Check if text contains characters outside the ASCII/Latin-1 range (>255)"""
    if not text:
        return False
    try:
        return any(ord(char) > 255 for char in text)
    except (TypeError, AttributeError):
        return True

# In User.draw():
name = placeholder_if_none(self.name)
if self.name and has_unsupported_chars(self.name):
    name = self.handle if self.handle else name

Behavior

Display Name	Before	After
Thor E-弓 SCHAEFF	Thor E-□ SCHAEFF	thorwebdev
José García	José García	José García
张伟	□□	zhangwei

Latin-1 accented characters (é, ñ, ö) continue to display correctly.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Font for the name does not support chinese characters</issue_title>
<issue_description>The badges app does not support chinese characters in the name. See photo

</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Font for the name does not support chinese characters #29

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