fix(frontend): apply jobs query filters and preserve search layout

frontend/src/app/jobs/page.tsx

@@ -1,6 +1,6 @@
 "use client"
 
-import { useSearchParams } from "next/navigation"
+import { usePathname, useRouter, useSearchParams } from "next/navigation"
 import { useEffect, useState, useMemo, Suspense, useCallback } from "react"
 import { Navbar } from "@/components/navbar"
 import { Footer } from "@/components/footer"
@@ -19,8 +19,13 @@ import { Search, MapPin, Briefcase, SlidersHorizontal, X, ArrowUpDown, Clock, Be
 import { motion, AnimatePresence } from "framer-motion"
 import type { Job } from "@/lib/types"
 
+const WORK_MODE_OPTIONS = ["remote", "hybrid", "onsite"]
+const TYPE_OPTIONS = ["full-time", "part-time", "contract", "dispatch"]
+
 function JobsContent() {
   const { t } = useTranslation()
+  const router = useRouter()
+  const pathname = usePathname()
   const searchParams = useSearchParams()
   const { searches, saveSearch, clearSearches, removeSearch } = useRecentSearches()
 
@@ -55,6 +60,17 @@ function JobsContent() {
   const debouncedLocation = useDebounce(locationFilter, 500)
 
   const handleSearch = useCallback(() => {
+    const query = new URLSearchParams()
+
+    if (searchTerm.trim()) query.set("q", searchTerm.trim())
+    if (locationFilter.trim()) query.set("location", locationFilter.trim())
+    if (typeFilter !== "all") query.set("type", typeFilter)
+    if (workModeFilter !== "all") query.set("workMode", workModeFilter)
+    if (salaryMin.trim()) query.set("salary", salaryMin.trim())
+
+    const nextUrl = query.toString() ? `${pathname}?${query.toString()}` : pathname
+    router.replace(nextUrl, { scroll: false })
+
     if (searchTerm || locationFilter) {
       saveSearch({
         query: searchTerm,
@@ -66,7 +82,17 @@ function JobsContent() {
         },
       })
     }
-  }, [searchTerm, locationFilter, typeFilter, workModeFilter, datePostedFilter, saveSearch])
+  }, [
+    searchTerm,
+    locationFilter,
+    typeFilter,
+    workModeFilter,
+    datePostedFilter,
+    salaryMin,
+    pathname,
+    router,
+    saveSearch,
+  ])
 
   // Initial params
   useEffect(() => {
@@ -74,10 +100,17 @@ function JobsContent() {
     const q = searchParams.get("q")
     const s = searchParams.get("s")
     const type = searchParams.get("type")
+    const contractType = searchParams.get("contractType")
     const location = searchParams.get("location")
     const l = searchParams.get("l")
     const mode = searchParams.get("mode")
     const workMode = searchParams.get("workMode")
+    const salary = searchParams.get("salary")
+    const salaryMinParam = searchParams.get("salaryMin")
+
+    const rawType = (type || contractType || "").toLowerCase()
+    const rawWorkMode = (mode || workMode || "").toLowerCase()
+    const parsedSalary = (salaryMinParam || salary || "").replace(/[^\d.,]/g, "").replace(",", ".")
 
     if (tech || q || s) {
       setSearchTerm(tech || q || s || "")
@@ -89,11 +122,21 @@ function JobsContent() {
       setShowFilters(true)
     }
 
-    if (type === "remote") {
+    if (rawType === "remote") {
       setWorkModeFilter("remote")
       setShowFilters(true)
-    } else if (mode || workMode) {
-      setWorkModeFilter(mode || workMode || "all")
+    } else if (rawWorkMode && WORK_MODE_OPTIONS.includes(rawWorkMode)) {
+      setWorkModeFilter(rawWorkMode)
+      setShowFilters(true)
+    }
+
+    if (rawType && TYPE_OPTIONS.includes(rawType)) {
+      setTypeFilter(rawType)
+      setShowFilters(true)
+    }
+
+    if (parsedSalary) {
+      setSalaryMin(parsedSalary)
       setShowFilters(true)
     }
   }, [searchParams])
@@ -194,8 +237,8 @@ function JobsContent() {
   }
 
   // Hardcoded options since we don't have all data client-side
-  const workModeOptions = ["remote", "hybrid", "onsite"]
-  const typeOptions = ["full-time", "part-time", "contract", "dispatch"]
+  const workModeOptions = WORK_MODE_OPTIONS
+  const typeOptions = TYPE_OPTIONS
 
   return (
     <>
@@ -264,7 +307,7 @@ function JobsContent() {
                 />
               </div>
 
-              <div className="flex gap-2">
+              <div className="flex flex-wrap gap-2 lg:flex-nowrap">
                 <Button
                   onClick={handleSearch}
                   className="h-12 gap-2 bg-[#F0932B] hover:bg-[#E8821C] text-white"