feat(view,tests): query blocks stay code in text the agent did not write

src/ui/host.ts

@@ -1,5 +1,6 @@
 import type { App, Component } from "obsidian";
-import { MarkdownRenderer, Platform } from "obsidian";
+import { MarkdownPreviewRenderer, MarkdownRenderer, Platform } from "obsidian";
+import { inertFences } from "$lib/panel/fences";
 import type { PanelHost } from "$lib/panel/host";
 
 export interface HostOptions {
@@ -12,17 +13,28 @@ export interface HostOptions {
   sourcePath: () => string;
 }
 
+const QUERY_LANGUAGES = new Set(["tasks", "dataview", "dataviewjs", "query"]);
+
+function runs(language: string): boolean {
+  const registered = (
+    MarkdownPreviewRenderer as unknown as {
+      codeBlockPostProcessors?: Record<string, unknown>;
+    }
+  ).codeBlockPostProcessors;
+  return QUERY_LANGUAGES.has(language) || language in (registered ?? {});
+}
+
 // The Obsidian side of the panel: markdown through the app's own renderer,
 // [[links]] opened in place, a conversation's note opened by its binding.
 export function obsidianHost(options: HostOptions): PanelHost {
   const { app, component } = options;
   return {
-    markdown(node, text) {
+    markdown(node, text, { inert = false } = {}) {
       let alive = true;
       const staging = document.createElement("div");
       MarkdownRenderer.render(
         app,
-        text,
+        inert ? inertFences(text, runs) : text,
         staging,
         options.sourcePath(),
         component