feat: Add description field and auto-spawn discuss agent on initiative creation

apps/server/trpc/routers/initiative.ts

@@ -5,14 +5,16 @@
 import { TRPCError } from '@trpc/server';
 import { z } from 'zod';
 import type { ProcedureBuilder } from '../trpc.js';
-import { requireInitiativeRepository, requireProjectRepository, requireTaskRepository } from './_helpers.js';
+import { requireAgentManager, requireInitiativeRepository, requireProjectRepository, requireTaskRepository } from './_helpers.js';
 import { deriveInitiativeActivity } from './initiative-activity.js';
+import { buildDiscussPrompt } from '../../agent/prompts/index.js';
 
 export function initiativeProcedures(publicProcedure: ProcedureBuilder) {
   return {
     createInitiative: publicProcedure
       .input(z.object({
         name: z.string().min(1),
+        description: z.string().optional(),
         branch: z.string().nullable().optional(),
         projectIds: z.array(z.string().min(1)).min(1).optional(),
         executionMode: z.enum(['yolo', 'review_per_phase']).optional(),
@@ -55,6 +57,34 @@ export function initiativeProcedures(publicProcedure: ProcedureBuilder) {
           });
         }
 
+        // Auto-spawn discuss agent when description is provided
+        if (input.description?.trim() && ctx.agentManager && ctx.taskRepository) {
+          try {
+            const taskRepo = requireTaskRepository(ctx);
+            const agentManager = requireAgentManager(ctx);
+
+            const task = await taskRepo.create({
+              initiativeId: initiative.id,
+              name: `Discuss: ${initiative.name}`,
+              description: input.description.trim(),
+              category: 'discuss',
+              status: 'in_progress',
+            });
+
+            const prompt = buildDiscussPrompt();
+
+            agentManager.spawn({
+              taskId: task.id,
+              prompt,
+              mode: 'discuss',
+              initiativeId: initiative.id,
+              inputContext: { initiative },
+            });
+          } catch {
+            // Fire-and-forget — don't fail initiative creation if agent spawn fails
+          }
+        }
+
         return initiative;
       }),