Replace native selects with shadcn Select across all pages

- lead-scoring-settings.tsx: Feature type dropdown
- bug-report-modal.tsx: Severity dropdown
- client-portal/support/page.tsx: Severity dropdown
- time-tracking/page.tsx: Timer project + manual entry project dropdowns
- proposals/new/page.tsx: Lead + customer dropdowns

src/app/client-portal/support/page.tsx

@@ -1,6 +1,13 @@
 "use client"
 
 import { useEffect, useState } from "react"
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select"
 import { LifeBuoy, Send } from "lucide-react"
 
 interface Ticket {
@@ -107,16 +114,17 @@ export default function ClientSupport() {
 
           <div>
             <label className="block text-sm text-[#8a8a95] mb-1">Severity</label>
-            <select
-              value={severity}
-              onChange={(e) => setSeverity(e.target.value)}
-              className="w-full bg-[#1a1a24] border border-[#2a2a35] rounded-lg px-3 py-2 text-sm text-white outline-none focus:border-[#1BB0CE]/50"
-            >
-              <option value="low">Low</option>
-              <option value="medium">Medium</option>
-              <option value="high">High</option>
-              <option value="critical">Critical</option>
-            </select>
+            <Select value={severity} onValueChange={setSeverity}>
+              <SelectTrigger className="w-full">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="low">Low</SelectItem>
+                <SelectItem value="medium">Medium</SelectItem>
+                <SelectItem value="high">High</SelectItem>
+                <SelectItem value="critical">Critical</SelectItem>
+              </SelectContent>
+            </Select>
           </div>
 
           {submitError && (