feat: lunch manifest query + CSV export

Adds buildManifest service shared between getManifest and the recap.
CSV escaper handles commas/quotes/newlines for safe spreadsheet import.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/server/routers/lunch.ts

@@ -2,6 +2,7 @@ import { z } from 'zod'
 import { TRPCError } from '@trpc/server'
 import { router, adminProcedure, protectedProcedure } from '../trpc'
 import { logAudit } from '../utils/audit'
+import { buildManifest } from '../services/lunch-recap'
 
 // ─── Shared zod schemas ──────────────────────────────────────────────────────
 
@@ -225,6 +226,48 @@ export const lunchRouter = router({
       return { ok: true as const }
     }),
 
+  // ─── Manifest + CSV export ───────────────────────────────────────────────
+
+  getManifest: adminProcedure
+    .input(z.object({ programId: z.string() }))
+    .query(({ ctx, input }) => buildManifest(ctx.prisma, input.programId)),
+
+  exportManifestCsv: adminProcedure
+    .input(z.object({ programId: z.string() }))
+    .query(async ({ ctx, input }) => {
+      const m = await buildManifest(ctx.prisma, input.programId)
+      const escape = (s: string | null | undefined) => {
+        const v = s ?? ''
+        return /[",\n]/.test(v) ? `"${v.replace(/"/g, '""')}"` : v
+      }
+      const lines = [
+        'Type,Team,Name,Email,Dish,Allergens,Allergen notes',
+        ...m.members.map((row) =>
+          [
+            'Member',
+            escape(row.project?.name),
+            escape(row.name),
+            escape(row.email),
+            escape(row.dish?.name),
+            escape(row.allergens.join(';')),
+            escape(row.allergenOther),
+          ].join(','),
+        ),
+        ...m.externals.map((row) =>
+          [
+            'External',
+            escape(row.project?.name),
+            escape(row.name),
+            escape(row.email),
+            escape(row.dish?.name),
+            escape(row.allergens.join(';')),
+            escape(row.allergenOther),
+          ].join(','),
+        ),
+      ]
+      return lines.join('\n')
+    }),
+
   // ─── Member reads ────────────────────────────────────────────────────────
 
   /**

src/server/services/lunch-recap.ts

@@ -0,0 +1,141 @@
+import type { PrismaClient } from '@prisma/client'
+
+/**
+ * Build the lunch manifest payload for a program. Used by both the
+ * admin manifest UI and the recap aggregation.
+ *
+ * Filters attending members to FinalistConfirmation.status === 'CONFIRMED'.
+ * Externals are unconditionally included (admin curates them directly).
+ */
+export async function buildManifest(prisma: PrismaClient, programId: string) {
+  const event = await prisma.lunchEvent.findUnique({
+    where: { programId },
+    include: { dishes: { orderBy: [{ sortOrder: 'asc' }, { createdAt: 'asc' }] } },
+  })
+  if (!event) {
+    return {
+      event: null,
+      members: [] as ManifestMember[],
+      externals: [] as ManifestExternal[],
+      dishes: [],
+      summary: { total: 0, picked: 0, missing: 0 },
+    }
+  }
+  const ams = await prisma.attendingMember.findMany({
+    where: {
+      confirmation: { project: { programId }, status: 'CONFIRMED' },
+    },
+    include: {
+      user: { select: { id: true, name: true, email: true } },
+      confirmation: { include: { project: { select: { id: true, title: true } } } },
+      lunchPick: { include: { dish: true } },
+    },
+  })
+  const externals = await prisma.externalAttendee.findMany({
+    where: { lunchEventId: event.id },
+    include: {
+      project: { select: { id: true, title: true } },
+      dish: true,
+    },
+    orderBy: { createdAt: 'asc' },
+  })
+  const members: ManifestMember[] = ams.map((am) => ({
+    kind: 'MEMBER',
+    attendingMemberId: am.id,
+    userId: am.user.id,
+    name: am.user.name ?? am.user.email,
+    email: am.user.email,
+    project: { id: am.confirmation.project.id, name: am.confirmation.project.title },
+    dish: am.lunchPick?.dish ?? null,
+    allergens: am.lunchPick?.allergens ?? [],
+    allergenOther: am.lunchPick?.allergenOther ?? null,
+    pickedAt: am.lunchPick?.pickedAt ?? null,
+  }))
+  const ext: ManifestExternal[] = externals.map((e) => ({
+    kind: 'EXTERNAL',
+    externalId: e.id,
+    name: e.name,
+    email: e.email,
+    project: e.project ? { id: e.project.id, name: e.project.title } : null,
+    roleNote: e.roleNote,
+    dish: e.dish,
+    allergens: e.allergens,
+    allergenOther: e.allergenOther,
+    pickedAt: e.dishId ? e.updatedAt : null,
+  }))
+  const total = members.length + ext.length
+  const picked = members.filter((m) => m.dish).length + ext.filter((e) => e.dish).length
+  return {
+    event,
+    dishes: event.dishes,
+    members,
+    externals: ext,
+    summary: { total, picked, missing: total - picked },
+  }
+}
+
+/**
+ * Build the recap email payload — manifest plus aggregate counts of dishes,
+ * dietary tags, and allergens.
+ */
+export async function buildRecapPayload(prisma: PrismaClient, programId: string) {
+  const m = await buildManifest(prisma, programId)
+  const dishCounts: Record<string, number> = {}
+  const dietaryCounts: Record<string, number> = {}
+  const allergenCounts: Record<string, number> = {}
+  const allRows: Array<{
+    dish: { name: string; dietaryTags: string[] } | null
+    allergens: string[]
+  }> = [
+    ...m.members.map((r) => ({ dish: r.dish, allergens: r.allergens })),
+    ...m.externals.map((r) => ({ dish: r.dish, allergens: r.allergens })),
+  ]
+  for (const row of allRows) {
+    if (row.dish) {
+      dishCounts[row.dish.name] = (dishCounts[row.dish.name] ?? 0) + 1
+      for (const tag of row.dish.dietaryTags) {
+        dietaryCounts[tag] = (dietaryCounts[tag] ?? 0) + 1
+      }
+    }
+    for (const a of row.allergens) {
+      allergenCounts[a] = (allergenCounts[a] ?? 0) + 1
+    }
+  }
+  return {
+    event: m.event,
+    members: m.members,
+    externals: m.externals,
+    dishCounts,
+    dietaryCounts,
+    allergenCounts,
+    summary: m.summary,
+  }
+}
+
+// ─── Types ──────────────────────────────────────────────────────────────────
+
+export type ManifestMember = {
+  kind: 'MEMBER'
+  attendingMemberId: string
+  userId: string
+  name: string
+  email: string
+  project: { id: string; name: string }
+  dish: { id: string; name: string; dietaryTags: string[] } | null
+  allergens: string[]
+  allergenOther: string | null
+  pickedAt: Date | null
+}
+
+export type ManifestExternal = {
+  kind: 'EXTERNAL'
+  externalId: string
+  name: string
+  email: string | null
+  project: { id: string; name: string } | null
+  roleNote: string | null
+  dish: { id: string; name: string; dietaryTags: string[] } | null
+  allergens: string[]
+  allergenOther: string | null
+  pickedAt: Date | null
+}