caddy: strip stray colon prefix from comfyui guard comment

The flip hunk's first comment line was written with a literal ':' prefix
(edit-tool auto-prefix artifact). Caddyfile parses ':# ...' as a matcher token,
which made the following site block an unrecognized directive and failed
config validation — that is why the earlier deploy validated, failed, and
skipped the reload, leaving the live config pre-flip (comfyui still direct).

dankclaw/Caddyfile

@@ -104,7 +104,7 @@ search.franksdank.cloud {
 	}
 }
 
-:# --- ComfyUI (guarded: Anubis → Authentik; comfyui-proxy provider, internal_host caddy:8017) ---
+# --- ComfyUI (guarded: Anubis → Authentik; comfyui-proxy provider, internal_host caddy:8017) ---
 comfyui.franksdank.cloud {
 	reverse_proxy anubis:8923 {
 		header_up X-Real-Ip {remote_host}