fix: correct idaa_trig usage in recovery_meetings Zoom URL editor

$idaa_trig is a key_val object (dict of boolean flags), not a string signal.
Adds update_zoom_full_url key to the store template and converts all 7
string comparisons/assignments to property access on the object.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/stores/ae_idaa_stores.ts

@@ -182,7 +182,8 @@ const idaa_trig_template: key_val = {
     archive_id: false,
     archive_content_li: false,
     event_id: false,
-    post_id: false
+    post_id: false,
+    update_zoom_full_url: false
 };
 export const idaa_trig: Writable<key_val> = writable(idaa_trig_template);