refactor: enhance routing and state management in CoopBuilder, add migration checks on startup, and update Tailwind configuration for improved component styling

composables/useCushionForecast.ts

@@ -0,0 +1,92 @@
+import { monthlyPayroll } from '~/types/members'
+
+export function useCushionForecast() {
+  const cashStore = useCashStore()
+  const membersStore = useMembersStore()
+  const policiesStore = usePoliciesStore()
+  const budgetStore = useBudgetStore()
+  
+  // Savings progress calculation
+  const savingsProgress = computed(() => {
+    const current = cashStore.currentSavings || 0
+    const targetMonths = policiesStore.savingsTargetMonths || 3
+    const monthlyBurn = getMonthlyBurn()
+    const target = targetMonths * monthlyBurn
+    
+    return {
+      current,
+      target,
+      targetMonths,
+      progressPct: target > 0 ? Math.min(100, (current / target) * 100) : 0,
+      gap: Math.max(0, target - current),
+      status: getProgressStatus(current, target)
+    }
+  })
+  
+  // 13-week cushion breach forecast
+  const cushionForecast = computed(() => {
+    const minCushion = policiesStore.minCashCushionAmount || 5000
+    const currentBalance = cashStore.currentCash || 0
+    const monthlyBurn = getMonthlyBurn()
+    const weeklyBurn = monthlyBurn / 4.33 // Convert monthly to weekly
+    
+    const weeks = []
+    let runningBalance = currentBalance
+    
+    for (let week = 1; week <= 13; week++) {
+      // Simple projection: subtract weekly burn
+      runningBalance -= weeklyBurn
+      
+      const breachesCushion = runningBalance < minCushion
+      
+      weeks.push({
+        week,
+        balance: runningBalance,
+        breachesCushion,
+        cushionAmount: minCushion
+      })
+    }
+    
+    const firstBreachWeek = weeks.find(w => w.breachesCushion)?.week
+    const breachesWithin13Weeks = Boolean(firstBreachWeek)
+    
+    return {
+      weeks,
+      firstBreachWeek,
+      breachesWithin13Weeks,
+      minCushion,
+      weeksUntilBreach: firstBreachWeek || null
+    }
+  })
+  
+  function getMonthlyBurn() {
+    const operatingMode = policiesStore.operatingMode || 'minimum'
+    const payrollCost = monthlyPayroll(membersStore.members, operatingMode)
+    const oncostPct = policiesStore.payrollOncostPct || 0
+    const totalPayroll = payrollCost * (1 + oncostPct / 100)
+    const overheadCost = budgetStore.overheadCosts.reduce((sum, cost) => sum + (cost.amount || 0), 0)
+    
+    return totalPayroll + overheadCost
+  }
+  
+  function getProgressStatus(current: number, target: number): 'green' | 'yellow' | 'red' {
+    if (target === 0) return 'green'
+    const pct = (current / target) * 100
+    if (pct >= 80) return 'green'
+    if (pct >= 50) return 'yellow'
+    return 'red'
+  }
+  
+  // Alert conditions (matching CLAUDE.md)
+  const alerts = computed(() => ({
+    savingsBelowTarget: savingsProgress.value.current < savingsProgress.value.target,
+    cushionBreach: cushionForecast.value.breachesWithin13Weeks,
+  }))
+  
+  return {
+    savingsProgress,
+    cushionForecast,
+    alerts,
+    getMonthlyBurn
+  }
+}