fix: resolve TypeErrors in core, events, and journals modules

- Core: Use FormData in video clip components to fix EventTarget errors.
- DB: Rename 'File' to 'ae_LocalFile' in db_core to prevent DOM type shadowing.
- API: Strictly type 'order_by_li' across archives, events, and journals to match API definition.
- API: Fix 'enabled'/'hidden' parameter types in search functions.
- Generics: Add 'any' cast to 'processed_obj' in generic processors to fix indexing errors.
- Journals: Update journal_entry creation to return null on failure, fix missing ID fields in DB save.

src/lib/ae_events/ae_events__event_session.ts

@@ -1282,7 +1282,7 @@ async function _process_generic_props<T extends Record<string, any>>({
         for (const key in processed_obj) {
             if (key.endsWith('_random')) {
                 const newKey = key.slice(0, -7); // Remove '_random' suffix
-                processed_obj[newKey] = processed_obj[key];
+                (processed_obj as any)[newKey] = processed_obj[key];
             }
         }
         // Ensure 'id' is set from '[obj_type]_id_random'