Competition/Round architecture: full platform rewrite (Phases 1-9)

Replace Pipeline/Stage system with Competition/Round architecture.
New schema: Competition, Round (7 types), JuryGroup, AssignmentPolicy,
ProjectRoundState, DeliberationSession, ResultLock, SubmissionWindow.
New services: round-engine, round-assignment, deliberation, result-lock,
submission-manager, competition-context, ai-prompt-guard.
Full admin/jury/applicant/mentor UI rewrite. AI prompt hardening with
structured prompts, retry logic, and injection detection. All legacy
pipeline/stage code removed. 4 new migrations + seed aligned.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/server/routers/decision.ts

@@ -1,6 +1,6 @@
 import { z } from 'zod'
 import { TRPCError } from '@trpc/server'
-import { Prisma, FilteringOutcome } from '@prisma/client'
+import { Prisma, FilteringOutcome, ProjectRoundStateValue } from '@prisma/client'
 import { router, protectedProcedure, adminProcedure } from '../trpc'
 import { logAudit } from '@/server/utils/audit'
 
@@ -12,7 +12,7 @@ export const decisionRouter = router({
     .input(
       z.object({
         entityType: z.enum([
-          'ProjectStageState',
+          'ProjectRoundState',
           'FilteringResult',
           'AwardEligibility',
         ]),
@@ -33,13 +33,13 @@ export const decisionRouter = router({
 
       // Fetch current value based on entity type
       switch (input.entityType) {
-        case 'ProjectStageState': {
-          const pss = await ctx.prisma.projectStageState.findUniqueOrThrow({
+        case 'ProjectRoundState': {
+          const prs = await ctx.prisma.projectRoundState.findUniqueOrThrow({
             where: { id: input.entityId },
           })
           previousValue = {
-            state: pss.state,
-            metadataJson: pss.metadataJson,
+            state: prs.state,
+            metadataJson: prs.metadataJson,
           }
 
           // Validate the new state
@@ -55,12 +55,12 @@ export const decisionRouter = router({
           }
 
           await ctx.prisma.$transaction(async (tx) => {
-            await tx.projectStageState.update({
+            await tx.projectRoundState.update({
               where: { id: input.entityId },
               data: {
-                state: (newState as Prisma.EnumProjectStageStateValueFieldUpdateOperationsInput['set']) ?? pss.state,
+                state: newState ? (newState as ProjectRoundStateValue) : prs.state,
                 metadataJson: {
-                  ...(pss.metadataJson as Record<string, unknown> ?? {}),
+                  ...(prs.metadataJson as Record<string, unknown> ?? {}),
                   lastOverride: {
                     by: ctx.user.id,
                     at: new Date().toISOString(),