feat: change templates bitforce to elcsa

src/infrastructure/mail/assets.py

@@ -0,0 +1,11 @@
+import base64
+from pathlib import Path
+
+_LOGO_PATH = Path(__file__).resolve().parent / 'templates' / 'static' / 'exa-logo.png'
+
+
+def get_exa_logo_data_uri() -> str | None:
+    if not _LOGO_PATH.is_file():
+        return None
+    data = base64.b64encode(_LOGO_PATH.read_bytes()).decode('ascii')
+    return f'data:image/png;base64,{data}'