fix(panel): make the LuckPerms page honest about what the server said (#59)

Live with real LuckPerms 5.5.85: every lp command returns an empty RCON body
(list/plugins answer normally; a standalone RCON client sees the same, and
creategroup/permission-set still persist), so the read projection can never
populate and the page asserted "no parent groups / no explicit nodes" for a
state it could not actually read. The raw reply now rides the same disclosure
the rosters carry, a silent entry-less reply shows an explicit notice instead
of the false empty claims, and the write history's placeholder no longer
dresses up a fabricated "[RCON] ..." line as output.

panel/src/i18n/resources/en-US/servers.json

@@ -159,6 +159,8 @@
   "luckperms_revert_success": "Action reverted successfully!",
   "luckperms_presets": "Presets",
   "luckperms_no_parent_groups": "No parent groups assigned",
+  "luckperms_no_reply": "The server returned no parseable data — some LuckPerms versions do not reply over RCON, so the group/permission lists below may be incomplete. Grants and revocations still take effect.",
+  "luckperms_no_output": "(the server returned no output)",
   "luckperms_global": "global",
   "luckperms_no_perms": "No explicit permission nodes assigned",
   "luckperms_rcon_output": "RCON Console Output",

panel/src/i18n/resources/zh-CN/servers.json

@@ -159,6 +159,8 @@
   "luckperms_revert_success": "已成功撤销该操作！",
   "luckperms_presets": "预设",
   "luckperms_no_parent_groups": "未分配任何父组",
+  "luckperms_no_reply": "服务器没有返回可解析的数据——部分 LuckPerms 版本不通过 RCON 回包，下面的用户组/权限列表可能不准确；授予与撤销操作仍然会实际生效。",
+  "luckperms_no_output": "（服务器未返回输出）",
   "luckperms_global": "全局",
   "luckperms_no_perms": "尚未分配任何权限节点",
   "luckperms_rcon_output": "RCON 控制台输出",

panel/src/lib/api.ts

@@ -245,6 +245,7 @@ export const api = {
       player: string;
       groups: string[];
       permissions: { node: string; value: boolean; world?: string }[];
+      output: string;
     }>("GET", `/servers/${name}/access/luckperms/${player}`),
 
   accessPermission: (

panel/src/pages/ServerLuckPerms.tsx

@@ -88,6 +88,18 @@ export function ServerLuckPerms() {
     [name, selectedPlayer]
   );
 
+  // LuckPerms does not reply over RCON (its commands finish asynchronously, after
+  // the response is flushed) — verified live on 5.5.85: every `lp` command
+  // returns an empty body while `list`/`plugins` answer normally. A silent,
+  // entry-less reply therefore means "could not read", NOT "no groups / no
+  // permissions": the two projection panels must not claim the latter on their
+  // own. The writes still work, so the page keeps offering them.
+  const lpSilent =
+    !!lpInfo &&
+    !(lpInfo.output ?? "").trim() &&
+    (lpInfo.groups?.length ?? 0) === 0 &&
+    (lpInfo.permissions?.length ?? 0) === 0;
+
   // Form State
   const [groupNameInput, setGroupNameInput] = useState("");
   const [permNodeInput, setPermNodeInput] = useState("");
@@ -135,7 +147,7 @@ export function ServerLuckPerms() {
         action: "add",
         target: groupName,
         status: "success",
-        output: res.output || `[RCON] parent add ${groupName}`,
+        output: res.output || t("luckperms_no_output"),
       });
       reloadLp();
     } catch (err) {
@@ -157,7 +169,7 @@ export function ServerLuckPerms() {
         action: "remove",
         target: groupName,
         status: "success",
-        output: res.output || `[RCON] parent remove ${groupName}`,
+        output: res.output || t("luckperms_no_output"),
       });
       reloadLp();
     } catch (err) {
@@ -194,7 +206,7 @@ export function ServerLuckPerms() {
         value: permValueInput,
         world: world || undefined,
         status: "success",
-        output: res.output || `[RCON] permission set ${node}`,
+        output: res.output || t("luckperms_no_output"),
       });
       setPermNodeInput("");
       setPermWorldInput("");
@@ -219,7 +231,7 @@ export function ServerLuckPerms() {
         target: node,
         world: world || undefined,
         status: "success",
-        output: res.output || `[RCON] permission unset ${node}`,
+        output: res.output || t("luckperms_no_output"),
       });
       reloadLp();
     } catch (err) {
@@ -395,6 +407,30 @@ export function ServerLuckPerms() {
                   </span>
                 </div>
 
+                {/* Ground truth: the raw RCON reply behind the two projection panels.
+                    The parse is LuckPerms-format-specific — on a server without the
+                    plugin it yields zero entries, and without this disclosure the
+                    panels would present that as "no groups / no permissions" while
+                    the real reply ("Unknown or incomplete command…") stays invisible.
+                    Same disclosure the whitelist/ban/online rosters carry. */}
+                {lpInfo?.output?.trim() && (
+                  <details className="group/details">
+                    <summary className="cursor-pointer select-none text-[10px] text-muted-foreground/70 hover:text-foreground font-mono transition-colors list-none flex items-center gap-1">
+                      <span className="transition-transform group-open/details:rotate-90">▶</span>
+                      {t("luckperms_rcon_output")}
+                    </summary>
+                    <pre className="mt-1.5 p-2 rounded bg-muted/60 border border-border/80 font-mono text-[10px] text-foreground/80 overflow-x-auto whitespace-pre-wrap break-all max-h-24">
+                      {lpInfo.output}
+                    </pre>
+                  </details>
+                )}
+
+                {lpSilent && (
+                  <div className="rounded-md border border-dashed border-border bg-muted/30 p-3 text-xs text-muted-foreground">
+                    {t("luckperms_no_reply")}
+                  </div>
+                )}
+
                 {/* Operations Feedback */}
                 {formFeedback && (
                   <div className={cn(