feat: start a project from another one's configuration

Creating a project can name one the creator owns or administers: its
statuses, transitions, types, areas, custom fields and automation rules
are copied once (paused rules stay paused; rules assigning to someone who
is not in the new project are left out). GraphQL templateProjectId, REST
template (id or key), MCP create_project template, and a select in the
web's new-project form.

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

apps/mcp/src/app/api/taskstream.schema.ts

@@ -1729,6 +1729,11 @@ export interface components {
              * @default false
              */
             isPublic: boolean;
+            /**
+             * @description A project you own or administer (id or key) to start from: its statuses, transitions, types, areas, custom fields and automation rules are copied
+             * @example API
+             */
+            template?: string | null;
         };
         CommandResultDto: {
             /** @description Id of the aggregate written */

apps/mcp/src/app/tools/projects.resolver.ts

@@ -40,7 +40,7 @@ export class ProjectsResolver {
   @Tool({
     name: 'create_project',
     description:
-      'Create a project; the user becomes its owner. The key prefixes its tickets (WEB → WEB-1) and cannot change later.',
+      'Create a project; the user becomes its owner. The key prefixes its tickets (WEB → WEB-1) and cannot change later. With template, it starts with the statuses, transitions, types, areas, custom fields and automation rules of that project.',
     paramsSchema: z.object({
       key: z
         .string()
@@ -52,6 +52,12 @@ export class ProjectsResolver {
         .boolean()
         .default(false)
         .describe('Anyone can read it, also without signing in'),
+      template: z
+        .string()
+        .optional()
+        .describe(
+          'Key of a project the user owns or administers to copy its configuration and automation rules from',
+        ),
     }),
     annotations: { readOnlyHint: false, destructiveHint: false },
   })
@@ -61,6 +67,7 @@ export class ProjectsResolver {
       name: string;
       description?: string;
       isPublic: boolean;
+      template?: string;
     },
     ctx: McpContext,
   ) {