Merge: paliadin meta-trailer defensive strip in renderer

frontend/src/client/paliadin-render.ts

@@ -89,7 +89,17 @@ function renderBlocks(escapedHtml: string): string {
   return out.join("");
 }
 
+// The [paliadin-meta] … [/paliadin-meta] trailer is internal telemetry
+// (used_tools / rows_seen / classifier_tag) that the backend is meant to
+// strip. Defensively strip it here too so it can NEVER reach the user even
+// when the backend's strip misses it (e.g. an empty meta block on a greeting,
+// or a chunk the aichat backend didn't catch). It always sits at the end,
+// optionally preceded by a `---` separator, so we cut from the opener to EOS —
+// which also handles a truncated/unterminated trailer.
+const META_TRAILER_RE = /\n*\s*(?:-{3,}\s*\n+)?\[paliadin-meta\][\s\S]*$/i;
+
 export function renderResponseHTML(raw: string): string {
+  raw = raw.replace(META_TRAILER_RE, "").replace(/\s+$/, "");
   let html = raw
     .replace(/&/g, "&")
     .replace(/</g, "&lt;")