feat: added task phase APIs

src/modules/task-manager/dto/task-phase/create-task-phase.dto.ts

@@ -0,0 +1,27 @@
+import { ApiProperty } from "@nestjs/swagger";
+import { IsString, IsOptional, IsNotEmpty, IsUUID, IsInt, MaxLength, Min } from "class-validator";
+
+export class CreateTaskPhaseDto {
+  @ApiProperty({ description: "Name of the task phase", example: "In Progress" })
+  @IsString()
+  @IsNotEmpty()
+  @MaxLength(100)
+  name: string;
+
+  @ApiProperty({ description: "Display order of the task phase", required: false, example: 1 })
+  @IsInt()
+  @IsOptional()
+  @Min(0)
+  order?: number;
+
+  @ApiProperty({ description: "Color code for the task phase", required: false, example: "#4F46E5" })
+  @IsString()
+  @IsOptional()
+  @MaxLength(20)
+  color?: string;
+
+  @ApiProperty({ description: "ID of the project this phase belongs to", example: "a1b2c3d4-e5f6-7890-abcd-ef1234567890" })
+  @IsUUID()
+  @IsNotEmpty()
+  projectId: string;
+}

src/modules/task-manager/dto/task-phase/update-task-phase.dto.ts

@@ -0,0 +1,4 @@
+import { PartialType } from "@nestjs/swagger";
+import { CreateTaskPhaseDto } from "./create-task-phase.dto";
+
+export class UpdateTaskPhaseDto extends PartialType(CreateTaskPhaseDto) {}