Embed IBM logo as base64 constant to avoid LFS/Xet issues

HF Spaces don't properly pull LFS objects at runtime, and HF now
rejects raw binary pushes (requires Xet). Embedding a compressed
200x200 version (~9KB base64) directly in the code works reliably.

app.py

@@ -51,17 +51,117 @@ from validation.validate import (
 logger = logging.getLogger(__name__)
 
 # ---------------------------------------------------------------------------
-# Embed IBM logo as base64 data URI (avoids static file serving issues)
+# IBM logo embedded as base64 data URI (avoids LFS/Xet issues on HF Spaces)
 # ---------------------------------------------------------------------------
-_IBM_LOGO_PATH = Path(__file__).resolve().parent / "assets" / "ibm_logo.png"
-_IBM_LOGO_B64 = ""
-if _IBM_LOGO_PATH.exists():
-    _IBM_LOGO_B64 = (
-        "data:image/png;base64,"
-        + base64.b64encode(_IBM_LOGO_PATH.read_bytes()).decode()
-    )
-else:
-    logger.warning("IBM logo not found at %s", _IBM_LOGO_PATH)
+_IBM_LOGO_B64 = (
+    "data:image/png;base64,"
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+)
 
 
 def _get_admin_password() -> str: