Round system redesign: Phases 1-7 complete

Full pipeline/track/stage architecture replacing the legacy round system.

Schema: 11 new models (Pipeline, Track, Stage, StageTransition,
ProjectStageState, RoutingRule, Cohort, CohortProject, LiveProgressCursor,
OverrideAction, AudienceVoter) + 8 new enums.

Backend: 9 new routers (pipeline, stage, routing, stageFiltering,
stageAssignment, cohort, live, decision, award) + 6 new services
(stage-engine, routing-engine, stage-filtering, stage-assignment,
stage-notifications, live-control).

Frontend: Pipeline wizard (17 components), jury stage pages (7),
applicant pipeline pages (3), public stage pages (2), admin pipeline
pages (5), shared stage components (3), SSE route, live hook.

Phase 6 refit: 23 routers/services migrated from roundId to stageId,
all frontend components refitted. Deleted round.ts (985 lines),
roundTemplate.ts, round-helpers.ts, round-settings.ts, round-type-settings.tsx,
10 legacy admin pages, 7 legacy jury pages, 3 legacy dialogs.

Phase 7 validation: 36 tests (10 unit + 8 integration files) all passing,
TypeScript 0 errors, Next.js build succeeds, 13 integrity checks,
legacy symbol sweep clean, auto-seed on first Docker startup.

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

src/server/routers/user.ts

@@ -479,7 +479,7 @@ export const userRouter = router({
               .array(
                 z.object({
                   projectId: z.string(),
-                  roundId: z.string(),
+                  stageId: z.string(),
                 })
               )
               .optional(),
@@ -531,8 +531,7 @@ export const userRouter = router({
         return { created: 0, skipped }
       }
 
-      // Build map of email -> assignments before createMany (since createMany removes extra fields)
-      const emailToAssignments = new Map<string, Array<{ projectId: string; roundId: string }>>()
+      const emailToAssignments = new Map<string, Array<{ projectId: string; stageId: string }>>()
       for (const u of newUsers) {
         if (u.assignments && u.assignments.length > 0) {
           emailToAssignments.set(u.email.toLowerCase(), u.assignments)
@@ -577,7 +576,7 @@ export const userRouter = router({
                 data: {
                   userId: user.id,
                   projectId: assignment.projectId,
-                  roundId: assignment.roundId,
+                  stageId: assignment.stageId,
                   method: 'MANUAL',
                   createdBy: ctx.user.id,
                 },
@@ -659,7 +658,7 @@ export const userRouter = router({
   getJuryMembers: adminProcedure
     .input(
       z.object({
-        roundId: z.string().optional(),
+        stageId: z.string().optional(),
         search: z.string().optional(),
       })
     )
@@ -690,8 +689,8 @@ export const userRouter = router({
           profileImageProvider: true,
           _count: {
             select: {
-              assignments: input.roundId
-                ? { where: { roundId: input.roundId } }
+              assignments: input.stageId
+                ? { where: { stageId: input.stageId } }
                 : true,
             },
           },