Fix TypeScript compile errors blocking Docker build

- Add vite-env.d.ts for import.meta.env type support
- Remove unused imports: ChevronRight, useCallback (x2), today
- Silence unused attachments state read (keep setter for future use)
- Fix FloatManagement changeTinTargets reducer: drop unused k, fix v type

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

frontend/src/components/Layout.tsx

@@ -1,6 +1,6 @@
 import { NavLink, useNavigate } from 'react-router-dom'
 import {
-  Banknote, ClipboardList, BarChart2, Wallet, FileText, Settings, LogOut, ChevronRight,
+  Banknote, ClipboardList, BarChart2, Wallet, FileText, Settings, LogOut,
 } from 'lucide-react'
 import type { User } from '../types'
 

frontend/src/pages/DailyCashUp.tsx

@@ -1,4 +1,4 @@
-import { useState, useCallback } from 'react'
+import { useState } from 'react'
 import { RefreshCw, Save, CheckCircle, Loader } from 'lucide-react'
 import { api } from '../api'
 import { PageHeader, Card, Btn, StatusBadge } from '../components/Layout'
@@ -38,7 +38,7 @@ export function DailyCashUp({ user: _user }: Props) {
   const [float, setFloat] = useState<Denomination[]>(initDenominations('float'))
   const [machines, setMachines] = useState<CardMachine[]>(initMachines())
   const [notes, setNotes] = useState('')
-  const [attachments, setAttachments] = useState<Attachment[]>([])
+  const [, setAttachments] = useState<Attachment[]>([])
   const [newbookTotals, setNewbookTotals] = useState<PaymentTotals | null>(null)
   const [tillPayments, setTillPayments] = useState<TillPayment[]>([])
   const [fetching, setFetching] = useState(false)

frontend/src/pages/FloatManagement.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect, useCallback } from 'react'
+import { useState, useEffect } from 'react'
 import { Routes, Route, NavLink, Navigate, useNavigate } from 'react-router-dom'
 import { api } from '../api'
 import { PageHeader, Card, Btn } from '../components/Layout'
@@ -44,7 +44,7 @@ function FloatCountForm({ type }: { type: CountType }) {
   const totalCounted = denoms.reduce((s, d) => s + d.value * (denomQtys[d.value] ?? 0), 0)
   const totalReceipts = receipts.reduce((s, r) => s + (parseFloat(r.amount) || 0), 0)
   const targetAmount = type === 'petty_cash' ? pettyTarget : type === 'change_tin'
-    ? Object.entries(changeTinTargets).reduce((s, [k, v]) => s + parseFloat(v as string || '0'), 0)
+    ? Object.entries(changeTinTargets).reduce((s, [, v]) => s + (v || 0), 0)
     : 0
   const variance = type === 'petty_cash'
     ? totalCounted + totalReceipts - pettyTarget

frontend/src/pages/MultiDayReport.tsx

@@ -1,7 +1,7 @@
 import { useState } from 'react'
 import { api } from '../api'
 import { PageHeader, Card, Btn } from '../components/Layout'
-import { fmtGBP, today } from '../types'
+import { fmtGBP } from '../types'
 
 interface SalesCol { gl_code: string; category: string; net_amount: number; vat_amount: number; gross_amount: number }
 interface ReconRow { category: string; banked_amount: number; reported_amount: number }

frontend/src/vite-env.d.ts

@@ -0,0 +1 @@
+/// <reference types="vite/client" />