README: document manifest-pinned deploy flow, builder-cache trap, branding overlay, keyless image path; mirror live volume files

mcp/image_server.py

@@ -37,16 +37,11 @@ def log(msg):
 
 
 def tool_generate_image(args):
+    # Seamless: use the member's own key if LibreChat injected one; otherwise
+    # fall back to a keyless request so members who never saved a key can
+    # still generate images (the gateway bills their shared co-op allowance).
     key = (os.environ.get("IC_API_KEY") or "").strip()
-    # If the user has not set a personal API key, fall back to an unauthenticated request.
-    # The gateway will bill the request to the member's account based on the session
-    # (the LibreChat backend already knows the member identity). This mirrors the
-    # behaviour of the chat endpoint, which does not require the user to manually
-    # provide a key.
-    if not key:
-        auth_header = {}
-    else:
-        auth_header = {"Authorization": f"Bearer {key}"}
+    auth_header = {"Authorization": f"Bearer {key}"} if key else {}
 
     prompt = str(args.get("prompt") or "").strip()
     if not prompt: