A

app/core/module_router.py

@@ -10,12 +10,13 @@ from .constants import WEB_EXPLOIT_MODULES
 def challenge_type_for_module(module: str) -> str:
     """Return challenge type for a module name.
 
-    Currently: ``"web"`` for the offensive web-exploitation set,
-    ``"crypto"`` for the legacy crypto challenges. New challenge types
-    are wired by extending this function — no caller change required.
+    Supports canonical challenge types AND topic names. New challenge
+    types are wired by extending this function — no caller change required.
     """
+    # Canonical challenge types
+    if module in ("web-exploitation", "steganography"):
+        return module
+    # Topic names that map to web-exploitation
     if module in WEB_EXPLOIT_MODULES:
         return "web-exploitation"
-    if module == "steganography":
-        return "steganography"
     return "crypto"