feat: add recent plans history to homepage

components/plan-tracker.tsx

@@ -0,0 +1,35 @@
+"use client"
+
+import { useEffect } from "react"
+
+export function PlanTracker({ planId, title }: { planId: string, title: string }) {
+    useEffect(() => {
+        const stored = localStorage.getItem("csp_recent_plans")
+        let plans: { id: string, title: string, lastVisited: number }[] = []
+
+        if (stored) {
+            try {
+                plans = JSON.parse(stored)
+            } catch (e) {
+                console.error(e)
+            }
+        }
+
+        // Remove existing entry for this plan
+        plans = plans.filter(p => p.id !== planId)
+
+        // Add to top
+        plans.unshift({
+            id: planId,
+            title: title,
+            lastVisited: Date.now()
+        })
+
+        // Keep max 5
+        plans = plans.slice(0, 5)
+
+        localStorage.setItem("csp_recent_plans", JSON.stringify(plans))
+    }, [planId, title])
+
+    return null
+}

components/recent-plans.tsx

@@ -0,0 +1,76 @@
+"use client"
+
+import { useEffect, useState } from "react"
+import Link from "next/link"
+import { History, ChevronRight, X } from "lucide-react"
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
+import { Button } from "@/components/ui/button"
+
+type RecentPlan = {
+    id: string
+    title: string
+    lastVisited: number
+}
+
+export function RecentPlans({ lang, dict }: { lang: string, dict: { title: string, noPlans: string, clear: string } }) {
+    const [plans, setPlans] = useState<RecentPlan[]>([])
+    const [mounted, setMounted] = useState(false)
+
+    useEffect(() => {
+        setMounted(true)
+        const stored = localStorage.getItem("csp_recent_plans")
+        if (stored) {
+            try {
+                const parsed = JSON.parse(stored)
+                setPlans(parsed.sort((a: RecentPlan, b: RecentPlan) => b.lastVisited - a.lastVisited))
+            } catch (e) {
+                console.error("Failed to parse recent plans", e)
+            }
+        }
+    }, [])
+
+    const removePlan = (id: string, e: React.MouseEvent) => {
+        e.preventDefault()
+        e.stopPropagation()
+        const newPlans = plans.filter(p => p.id !== id)
+        setPlans(newPlans)
+        localStorage.setItem("csp_recent_plans", JSON.stringify(newPlans))
+    }
+
+    if (!mounted || plans.length === 0) return null
+
+    return (
+        <Card>
+            <CardHeader className="pb-3">
+                <CardTitle className="text-base font-medium flex items-center gap-2">
+                    <History className="w-4 h-4" />
+                    {dict.title}
+                </CardTitle>
+            </CardHeader>
+            <CardContent className="grid gap-2">
+                {plans.map((plan) => (
+                    <Link
+                        key={plan.id}
+                        href={`/${lang}/dashboard/${plan.id}`}
+                        className="group flex items-center justify-between p-3 rounded-lg border bg-card hover:bg-accent/50 transition-colors"
+                    >
+                        <div className="font-medium truncate mr-4">
+                            {plan.title}
+                        </div>
+                        <div className="flex items-center gap-2 text-muted-foreground">
+                            <Button
+                                variant="ghost"
+                                size="icon"
+                                className="h-6 w-6 opacity-0 group-hover:opacity-100 transition-opacity"
+                                onClick={(e) => removePlan(plan.id, e)}
+                            >
+                                <X className="w-3.5 h-3.5" />
+                            </Button>
+                            <ChevronRight className="w-4 h-4" />
+                        </div>
+                    </Link>
+                ))}
+            </CardContent>
+        </Card>
+    )
+}