EmDash installed - server mode, basic integration. Visual editor wiring deferred to fix build errors.

src/live.config.ts

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+import { defineLiveCollection } from "astro:content";
+import { emdashLoader } from "emdash/runtime";
+
+export const collections = {
+  _emdash: defineLiveCollection({ loader: emdashLoader() }),
+};

src/utils/site-identity.ts

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+import { emdash } from "emdash/astro";
+import type { CollectionEntry } from "astro:content";
+
+export async function getSiteSettings() {
+  const context = await emdash(Astro);
+  const settings = context.entries.settings?.[0];
+  return settings;
+}
+
+export function resolveBlogSiteIdentity(entry: CollectionEntry<"blog">) {
+  return {
+    title: entry.data.title,
+    description: entry.data.excerpt,
+    image: entry.data.image,
+  };
+}
+
+export function getReadingTime(content: string): string {
+  const wordsPerMinute = 200;
+  const words = content.split(/\s+/).length;
+  const minutes = Math.ceil(words / wordsPerMinute);
+  return `${minutes} นาที`;
+}