introduce the logging module

src/logging/models/logentry.model.ts

@@ -0,0 +1,34 @@
+import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
+import { Document } from 'mongoose';
+
+export type LogEntryDocument = LogEntry & Document;
+
+@Schema()
+export class LogEntry {
+  @Prop({
+    required: true,
+    type: String,
+  })
+  component: string;
+
+  @Prop({
+    required: true,
+    enum: ['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'],
+    type: String,
+  })
+  level: string;
+
+  @Prop({
+    required: true,
+    type: String,
+  })
+  timestamp: string;
+
+  @Prop({
+    required: true,
+    type: String,
+  })
+  message: string;
+}
+
+export const LogEntrySchema = SchemaFactory.createForClass(LogEntry);