feat: round finalization with ranking-based outcomes + award pool notifications

- processRoundClose EVALUATION uses ranking scores + advanceMode config
  (threshold vs count) to auto-set proposedOutcome instead of defaulting all to PASSED
- Advancement emails generate invite tokens for passwordless users with
  "Create Your Account" CTA; rejection emails have no link
- Finalization UI shows account stats (invite vs dashboard link counts)
- Fixed getFinalizationSummary ranking query (was using non-existent rankingsJson)
- New award pool notification system: getAwardSelectionNotificationTemplate email,
  notifyEligibleProjects mutation with invite token generation,
  "Notify Pool" button on award detail page with custom message dialog

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

src/server/routers/message.ts

@@ -2,7 +2,7 @@ import { z } from 'zod'
 import { TRPCError } from '@trpc/server'
 import { router, protectedProcedure, adminProcedure } from '../trpc'
 import { logAudit } from '@/server/utils/audit'
-import { sendStyledNotificationEmail } from '@/lib/email'
+import { sendStyledNotificationEmail, getEmailPreviewHtml } from '@/lib/email'
 
 export const messageRouter = router({
   /**
@@ -12,7 +12,7 @@ export const messageRouter = router({
   send: adminProcedure
     .input(
       z.object({
-        recipientType: z.enum(['USER', 'ROLE', 'ROUND_JURY', 'PROGRAM_TEAM', 'ALL']),
+        recipientType: z.enum(['USER', 'ROLE', 'ROUND_JURY', 'ROUND_APPLICANTS', 'PROGRAM_TEAM', 'ALL']),
         recipientFilter: z.any().optional(),
         roundId: z.string().optional(),
         subject: z.string().min(1).max(500),
@@ -371,6 +371,34 @@ export const messageRouter = router({
 
       return template
     }),
+
+  /**
+   * Preview styled email HTML for admin compose dialog.
+   */
+  previewEmail: adminProcedure
+    .input(z.object({ subject: z.string(), body: z.string() }))
+    .query(({ input }) => {
+      return { html: getEmailPreviewHtml(input.subject, input.body) }
+    }),
+
+  /**
+   * Send a test email to the currently logged-in admin.
+   */
+  sendTest: adminProcedure
+    .input(z.object({ subject: z.string(), body: z.string() }))
+    .mutation(async ({ ctx, input }) => {
+      await sendStyledNotificationEmail(
+        ctx.user.email,
+        ctx.user.name || '',
+        'MESSAGE',
+        {
+          title: input.subject,
+          message: input.body,
+          linkUrl: '/admin/messages',
+        }
+      )
+      return { sent: true, to: ctx.user.email }
+    }),
 })
 
 // =============================================================================
@@ -419,6 +447,35 @@ async function resolveRecipients(
       return assignments.map((a) => a.userId)
     }
 
+    case 'ROUND_APPLICANTS': {
+      const targetRoundId = roundId || (filter?.roundId as string)
+      if (!targetRoundId) return []
+      // Get all projects in this round
+      const projectStates = await prisma.projectRoundState.findMany({
+        where: { roundId: targetRoundId },
+        select: { projectId: true },
+      })
+      const projectIds = projectStates.map((ps) => ps.projectId)
+      if (projectIds.length === 0) return []
+      // Get team members + submittedByUserId
+      const [teamMembers, projects] = await Promise.all([
+        prisma.teamMember.findMany({
+          where: { projectId: { in: projectIds } },
+          select: { userId: true },
+        }),
+        prisma.project.findMany({
+          where: { id: { in: projectIds } },
+          select: { submittedByUserId: true },
+        }),
+      ])
+      const userIds = new Set<string>()
+      for (const tm of teamMembers) userIds.add(tm.userId)
+      for (const p of projects) {
+        if (p.submittedByUserId) userIds.add(p.submittedByUserId)
+      }
+      return [...userIds]
+    }
+
     case 'PROGRAM_TEAM': {
       const programId = filter?.programId as string
       if (!programId) return []