Add Safari internal JS services and documentation

js/reader/Reader.js

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+//# sourceURL=__InjectedScript_Reader.js
+/* Copyright (c) 2025 Apple Inc. All rights reserved. */
+/*
+ * Copyright (c) 2010 Apple Inc. All rights reserved.
+ */
+function setScrollTop(e) {
+  document.documentElement.scrollTop = e;
+}
+function readerWillBecomeVisible() {
+  setReaderIsActive(!0);
+}
+function readerWillEnterBackground() {
+  setReaderIsActive(!1);
+}
+ReaderJS._clickingOutsideOfPaperRectangleDismissesReader = !0;
+let cachedIframeURLMap = new Map();
+((ReaderJS._readerWillBecomeVisible = function () {
+  for (let e of document.querySelectorAll("iframe")) {
+    let r = cachedIframeURLMap.get(e);
+    r && ((e.src = r), cachedIframeURLMap.delete(e));
+  }
+}),
+  (ReaderJS._readerWillEnterBackground = function () {
+    for (let e of document.querySelectorAll("iframe")) {
+      e.src && (cachedIframeURLMap.set(e, e.src), e.removeAttribute("src"));
+    }
+  }),
+  (ReaderJS._isJavaScriptEnabled = function () {
+    return !!(ReaderJSController.initialConfiguration() || {})[
+      ReaderConfigurationJavaScriptEnabledKey
+    ];
+  }),
+  (ReaderAppearanceJS._tryApplyStaticConfiguration = function () {
+    return (document.body.classList.add("mac"), !1);
+  }));

js/reader/ReaderSharedUINormalWorld.js

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+//# sourceURL=__InjectedScript_ReaderSharedUINormalWorld.js
+/* Copyright (c) 2025 Apple Inc. All rights reserved. */
+function loadTwitterJavaScript() {
+  window.twttr ||
+    (window.twttr = (function (e, t, r) {
+      var i,
+        a,
+        d = e.getElementsByTagName(t)[0];
+      if (!e.getElementById(r))
+        return (
+          ((a = e.createElement(t)).id = r),
+          (a.src = "https://platform.twitter.com/widgets.js"),
+          d.parentNode.insertBefore(a, d),
+          window.twttr ||
+            (i = {
+              _e: [],
+              ready: function (e) {
+                i._e.push(e);
+              },
+            })
+        );
+    })(document, "script", "twitter-wjs"));
+}
+function richTweetWasCreatedFromSimpleTweet(e) {
+  e.parentNode.querySelector(".simple-tweet").classList.add("hidden");
+}
+function replaceSimpleTweetsWithRichTweets(e) {
+  let t = document.querySelectorAll("[data-reader-tweet-id]");
+  t.length &&
+    (loadTwitterJavaScript(),
+    twttr.ready(function (r) {
+      for (let i of t)
+        r.widgets
+          .createTweet(i.getAttribute("data-reader-tweet-id"), i, e)
+          .then(richTweetWasCreatedFromSimpleTweet);
+    }));
+}