Refactor and cleanup OIDC, desktop, and web-app roles

- Improved OIDC variable definitions (12_oidc.yml)
- Added account/security/profile URLs
- Restructured web-app-desktop tasks and JS handling
- Introduced oidc.js and iframe.js with runtime loader
- Fixed nginx.conf, LDAP, and healthcheck templates spacing
- Improved Lua injection for CSP and snippets
- Fixed typos (WordPress, receive, etc.)
- Added silent-check-sso nginx location

Conversation: https://chatgpt.com/share/68ae0060-4fac-800f-9f02-22592a4087d3

roles/web-app-desktop/templates/javascript/iframe.js.j2

@@ -0,0 +1,30 @@
+window.addEventListener("message", function(event) {
+  const allowedSuffix = ".{{ PRIMARY_DOMAIN }}";
+  const origin = event.origin;
+
+  // 1. Only allow messages from *.{{ PRIMARY_DOMAIN }}
+  if (!origin.endsWith(allowedSuffix)) return;
+
+  const data = event.data;
+
+  // 2. Only process valid iframeLocationChange messages
+  if (data && data.type === "iframeLocationChange" && typeof data.href === "string") {
+    try {
+      const hrefUrl = new URL(data.href);
+
+      // 3. Only allow redirects to *.{{ PRIMARY_DOMAIN }}
+      if (!hrefUrl.hostname.endsWith(allowedSuffix)) return;
+
+      // 4. Update the ?iframe= parameter in the browser URL
+      const newUrl = new URL(window.location);
+      newUrl.searchParams.set("iframe", hrefUrl.href);
+      window.history.replaceState({}, "", newUrl);
+    } catch (e) {
+      // Invalid or malformed URL – ignore
+    }
+  }
+});
+
+{% if MODE_DEBUG | bool %}
+console.log("[iframe-sync] Listener for iframe messages is active.");
+{% endif %}