fix: use one-shot flag for pagefind instead of incremental guard

The --incremental CLI flag sets incremental=true in eleventy.after even
for the watcher's first full build, so pagefind was never running when
the initial build was OOM-killed. Replace the incremental guard with a
pagefindDone boolean that runs pagefind exactly once per process lifetime
— whichever build completes first (initial or watcher) gets indexed.

eleventy.config.js

@@ -663,11 +663,15 @@ export default function (eleventyConfig) {
   });
 
   // Post-build hook: pagefind indexing + WebSub notification
-  // Runs after every full build (initial + watcher's first build), skips incremental rebuilds
+  // Pagefind runs once on the first build (initial or watcher's first full build), then never again.
+  // WebSub runs on every non-incremental build.
+  // Note: --incremental CLI flag sets incremental=true even for the watcher's first full build,
+  // so we cannot use the incremental flag to guard pagefind. Use a one-shot flag instead.
+  let pagefindDone = false;
   eleventyConfig.on("eleventy.after", async ({ dir, directories, runMode, incremental }) => {
-    if (incremental) return;
+    // Pagefind indexing — run exactly once per process lifetime
-
+    if (!pagefindDone) {
-    // Pagefind indexing — use directories.output (reflects --output CLI flag)
+      pagefindDone = true;
       const outputDir = directories?.output || dir.output;
       try {
         console.log(`[pagefind] Indexing ${outputDir} (${runMode})...`);
@@ -679,8 +683,10 @@ export default function (eleventyConfig) {
       } catch (err) {
         console.error("[pagefind] Indexing failed:", err.message);
       }
+    }
 
-    // WebSub hub notification — notify subscribers of feed updates
+    // WebSub hub notification — skip on incremental rebuilds
+    if (incremental) return;
     const hubUrl = "https://websubhub.com/hub";
     const feedUrls = [
       `${siteUrl}/`,