feat: definition of done per project

A project can ask that tickets reach a DONE status only with their
checklist ticked (settings.checklistBeforeDone, off by default; absent
when saving means unchanged). Members get a 422 telling how many steps are
left; owners and admins may still close it. Settings has the switch and
the ticket's checklist says when the project asks for it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/api/tracker/presenters/src/lib/common/settings.ts

@@ -27,6 +27,8 @@ export interface SettingsPayload {
     template?: { description?: string | null; checklist?: string[] } | null;
   }[];
   areas: { id: string; name: string; archived: boolean }[];
+  /** Definition of done. Absent when saving: unchanged. */
+  checklistBeforeDone?: boolean;
   /** Absent when saving: unchanged. */
   customFields?: {
     id: string;
@@ -41,6 +43,7 @@ export function toSettingsPayload(settings: ProjectSettings): SettingsPayload {
   return {
     ...settings,
     customFields: settings.customFields ?? [],
+    checklistBeforeDone: !!settings.checklistBeforeDone,
     transitions: settings.statuses.map((s) => ({
       from: s.id,
       to: settings.transitions[s.id] ?? [],
@@ -72,6 +75,9 @@ export function fromSettingsPayload(payload: SettingsPayload): ProjectSettings {
         : {}),
     })),
     areas: payload.areas,
+    ...(payload.checklistBeforeDone != null
+      ? { checklistBeforeDone: payload.checklistBeforeDone }
+      : {}),
     ...(payload.customFields
       ? {
           customFields: payload.customFields.map((f) => ({

libs/api/tracker/presenters/src/lib/graphql/inputs.ts

@@ -772,6 +772,15 @@ export class ProjectSettingsInput {
   @ValidateNested({ each: true })
   @Type(() => CustomFieldDefinitionInput)
   customFields?: CustomFieldDefinitionInput[];
+
+  @Field({
+    nullable: true,
+    description:
+      'Definition of done: DONE only with the checklist ticked. Absent: unchanged',
+  })
+  @IsOptional()
+  @IsBoolean()
+  checklistBeforeDone?: boolean;
 }
 
 @InputType({

libs/api/tracker/presenters/src/lib/graphql/types.ts

@@ -115,6 +115,11 @@ export class ProjectSettingsGql {
   @Field(() => [AreaOptionGql]) areas!: AreaOptionGql[];
   @Field(() => [CustomFieldDefinitionGql])
   customFields!: CustomFieldDefinitionGql[];
+  @Field({
+    description:
+      'Definition of done: tickets reach DONE only with their checklist ticked (owners and admins may override)',
+  })
+  checklistBeforeDone!: boolean;
 }
 
 @ObjectType('Project')

libs/api/tracker/presenters/src/lib/http/dto/requests.dto.ts

@@ -318,6 +318,14 @@ export class ProjectSettingsBodyDto {
   @ValidateNested({ each: true })
   @Type(() => CustomFieldDefinitionBodyDto)
   customFields?: CustomFieldDefinitionBodyDto[];
+
+  @ApiPropertyOptional({
+    description:
+      'Definition of done: tickets reach a DONE status only with their checklist ticked (owners and admins may override). Absent: unchanged',
+  })
+  @IsOptional()
+  @IsBoolean()
+  checklistBeforeDone?: boolean;
 }
 
 export class AnalyticsQueryDto {

libs/api/tracker/presenters/src/lib/http/dto/responses.dto.ts

@@ -103,6 +103,11 @@ export class ProjectSettingsDto {
   @ApiProperty({ type: [AreaOptionDto] }) areas!: AreaOptionDto[];
   @ApiProperty({ type: [CustomFieldDefinitionDto] })
   customFields!: CustomFieldDefinitionDto[];
+  @ApiProperty({
+    description:
+      'Definition of done: tickets reach DONE only with their checklist ticked',
+  })
+  checklistBeforeDone!: boolean;
 }
 
 export class ProjectDto {