Add DTOs for notes and note authorship

Signed-off-by: David Mehren <git@herrmehren.de>

src/notes/note-authorship.dto.ts

@@ -0,0 +1,17 @@
+import { IsDate, IsNumber, IsString, Min } from 'class-validator';
+import { UserInfoDto } from '../users/user-info.dto';
+
+export class NoteAuthorshipDto {
+  @IsString()
+  userName: UserInfoDto['userName'];
+  @IsNumber()
+  @Min(0)
+  startPos: number;
+  @IsNumber()
+  @Min(0)
+  endPos: number;
+  @IsDate()
+  createdAt: Date;
+  @IsDate()
+  updatedAt: Date;
+}

src/notes/note.dto.ts

@@ -0,0 +1,15 @@
+import { IsArray, IsString, ValidateNested } from 'class-validator';
+import { NoteAuthorshipDto } from './note-authorship.dto';
+import { NoteMetadataDto } from './note-metadata.dto';
+
+export class NoteDto {
+  @IsString()
+  content: string;
+
+  @ValidateNested()
+  metdata: NoteMetadataDto;
+
+  @IsArray()
+  @ValidateNested({ each: true })
+  editedByAtPosition: NoteAuthorshipDto[];
+}