feat(indexing): Add support for regular index creation in documents and collections

ts/classes.collection.ts

@@ -1,7 +1,7 @@
 import * as plugins from './plugins.js';
 import { SmartdataDb } from './classes.db.js';
 import { SmartdataDbCursor } from './classes.cursor.js';
-import { SmartDataDbDoc } from './classes.doc.js';
+import { SmartDataDbDoc, type IIndexOptions } from './classes.doc.js';
 import { SmartdataDbWatcher } from './classes.watcher.js';
 import { CollectionFactory } from './classes.collectionfactory.js';
 
@@ -127,6 +127,7 @@ export class SmartdataCollection<T> {
   public collectionName: string;
   public smartdataDb: SmartdataDb;
   public uniqueIndexes: string[] = [];
+  public regularIndexes: Array<{field: string, options: IIndexOptions}> = [];
 
   constructor(classNameArg: string, smartDataDbArg: SmartdataDb) {
     // tell the collection where it belongs
@@ -170,6 +171,24 @@ export class SmartdataCollection<T> {
     }
   }
 
+  /**
+   * creates regular indexes for the collection
+   */
+  public createRegularIndexes(indexesArg: Array<{field: string, options: IIndexOptions}> = []) {
+    for (const indexDef of indexesArg) {
+      // Check if we've already created this index
+      const indexKey = indexDef.field;
+      if (!this.regularIndexes.some(i => i.field === indexKey)) {
+        this.mongoDbCollection.createIndex(
+          { [indexDef.field]: 1 }, // Simple single-field index
+          indexDef.options
+        );
+        // Track that we've created this index
+        this.regularIndexes.push(indexDef);
+      }
+    }
+  }
+
   /**
    * adds a validation function that all newly inserted and updated objects have to pass
    */
@@ -238,6 +257,12 @@ export class SmartdataCollection<T> {
     await this.init();
     await this.checkDoc(dbDocArg);
     this.markUniqueIndexes(dbDocArg.uniqueIndexes);
+    
+    // Create regular indexes if available
+    if (dbDocArg.regularIndexes && dbDocArg.regularIndexes.length > 0) {
+      this.createRegularIndexes(dbDocArg.regularIndexes);
+    }
+    
     const saveableObject = await dbDocArg.createSavableObject();
     const result = await this.mongoDbCollection.insertOne(saveableObject);
     return result;
@@ -295,4 +320,4 @@ export class SmartdataCollection<T> {
     }
     return done.promise;
   }
-}
+}