DEV: Add compatibility with the Glimmer Post Stream (#247)

This commit updates the ad plugin to support the Glimmer Post Stream and refactors ad rendering logic for improved compatibility and maintainability.

Key changes:

- Introduce glimmer_post_stream_mode compatibility across all ad types and test suites.
- Replace .widget-connector with .ad-connector for ad placement after posts.
- Migrate initialize-ad-plugin.js to initialize-ad-plugin.gjs to leverage Glimmer and API improvements.
- Use withSilencedDeprecations to handle widget overrides for post ads.
- Update compatibility constraints in .discourse-compatibility.
- Refactor and expand acceptance tests for AdSense, DFP, and House Ads to run with both Glimmer and legacy post stream modes.

assets/javascripts/discourse/initializers/initialize-ad-plugin.gjs

@@ -0,0 +1,53 @@
+import { hbs } from "ember-cli-htmlbars";
+import { withSilencedDeprecations } from "discourse/lib/deprecated";
+import { withPluginApi } from "discourse/lib/plugin-api";
+import Site from "discourse/models/site";
+import { registerWidgetShim } from "discourse/widgets/render-glimmer";
+import PostBottomAd from "../components/post-bottom-ad";
+
+export default {
+  name: "initialize-ad-plugin",
+  initialize(container) {
+    withPluginApi((api) => {
+      customizePost(api);
+    });
+
+    const messageBus = container.lookup("service:message-bus");
+    const currentUser = container.lookup("service:current-user");
+
+    const channel = currentUser
+      ? "/site/house-creatives/logged-in"
+      : "/site/house-creatives/anonymous";
+
+    messageBus.subscribe(channel, function (houseAdsSettings) {
+      Site.currentProp("house_creatives", houseAdsSettings);
+    });
+  },
+};
+
+function customizePost(api) {
+  api.renderAfterWrapperOutlet(
+    "post-article",
+    <template>
+      <div class="ad-connector">
+        <PostBottomAd @model={{@post}} />
+      </div>
+    </template>
+  );
+
+  withSilencedDeprecations("discourse.post-stream-widget-overrides", () =>
+    customizeWidgetPost(api)
+  );
+}
+
+function customizeWidgetPost(api) {
+  registerWidgetShim(
+    "after-post-ad",
+    "div.ad-connector",
+    hbs`<PostBottomAd @model={{@data}} />`
+  );
+
+  api.decorateWidget("post:after", (helper) => {
+    return helper.attach("after-post-ad", helper.widget.model);
+  });
+}

assets/javascripts/discourse/initializers/initialize-ad-plugin.js

@@ -1,32 +0,0 @@
-import { hbs } from "ember-cli-htmlbars";
-import { withPluginApi } from "discourse/lib/plugin-api";
-import Site from "discourse/models/site";
-import { registerWidgetShim } from "discourse/widgets/render-glimmer";
-
-export default {
-  name: "initialize-ad-plugin",
-  initialize(container) {
-    registerWidgetShim(
-      "after-post-ad",
-      "div.widget-connector",
-      hbs`<PostBottomAd @model={{@data}} />`
-    );
-
-    withPluginApi("0.1", (api) => {
-      api.decorateWidget("post:after", (helper) => {
-        return helper.attach("after-post-ad", helper.widget.model);
-      });
-    });
-
-    const messageBus = container.lookup("service:message-bus");
-    const currentUser = container.lookup("service:current-user");
-
-    const channel = currentUser
-      ? "/site/house-creatives/logged-in"
-      : "/site/house-creatives/anonymous";
-
-    messageBus.subscribe(channel, function (houseAdsSettings) {
-      Site.currentProp("house_creatives", houseAdsSettings);
-    });
-  },
-};