easier fund management and navigations

src/app/hashtag/[tag]/TradePanel.tsx

@@ -2,6 +2,7 @@
 
 import { useState } from 'react'
 import { useRouter } from 'next/navigation'
+import Link from 'next/link'
 import { formatCurrency, formatNumber } from '@/lib/utils'
 
 interface Props {
@@ -11,18 +12,20 @@ interface Props {
   shortPosition: { shares: number; avgBuyPrice: number } | null
   fundId?: string
   fundName?: string
+  managedFunds?: { slug: string; name: string }[]
   maxPositionShares: number
   maxPositionValue: number
 }
 
 type Tab = 'BUY_LONG' | 'SELL_LONG' | 'BUY_SHORT' | 'SELL_SHORT'
 
-export function TradePanel({ hashtag, balance, longPosition, shortPosition, fundId, fundName, maxPositionShares, maxPositionValue }: Props) {
+export function TradePanel({ hashtag, balance, longPosition, shortPosition, fundId, fundName, managedFunds, maxPositionShares, maxPositionValue }: Props) {
   const router = useRouter()
   const [tab, setTab] = useState<Tab>('BUY_LONG')
   const [shares, setShares] = useState('')
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState('')
+  const [showFundMenu, setShowFundMenu] = useState(false)
 
   const sharesNum = parseFloat(shares) || 0
   const cost = sharesNum * hashtag.currentPrice
@@ -65,13 +68,53 @@ export function TradePanel({ hashtag, balance, longPosition, shortPosition, fund
 
   return (
     <div className="bg-surface-card border border-surface-border rounded-xl p-6 space-y-5">
-      {fundName && (
+      {fundName ? (
         <div className="flex items-center gap-2 text-xs bg-indigo-500/10 border border-indigo-500/30 rounded-lg px-3 py-2 text-indigo-300">
-          <span className="text-lg">🏦</span>
-          Trading as <span className="font-semibold">{fundName}</span>
-          <span className="text-indigo-500 ml-auto">Fund mode</span>
+          <span className="text-base">🏦</span>
+          <span>Trading as <span className="font-semibold">{fundName}</span></span>
+          <Link
+            href={`/hashtag/${hashtag.tag}`}
+            className="ml-auto text-indigo-400 hover:text-indigo-200 transition-colors"
+          >
+            Exit fund mode ×
+          </Link>
+        </div>
+      ) : managedFunds && managedFunds.length === 1 ? (
+        <Link
+          href={`/hashtag/${hashtag.tag}?fund=${encodeURIComponent(managedFunds[0].slug)}`}
+          className="flex items-center gap-2 text-xs border border-surface-border rounded-lg px-3 py-2 text-slate-400 hover:text-slate-200 hover:bg-surface transition-colors"
+        >
+          <span className="text-base">🏦</span>
+          <span>Trade as <span className="font-medium text-slate-200">{managedFunds[0].name}</span></span>
+          <span className="ml-auto">→</span>
+        </Link>
+      ) : managedFunds && managedFunds.length > 1 ? (
+        <div className="text-xs border border-surface-border rounded-lg overflow-hidden">
+          <button
+            type="button"
+            onClick={() => setShowFundMenu((v) => !v)}
+            className="w-full flex items-center gap-2 px-3 py-2 text-slate-400 hover:text-slate-200 hover:bg-surface transition-colors"
+          >
+            <span className="text-base">🏦</span>
+            <span>Trade as a fund</span>
+            <span className="ml-auto text-slate-600">{showFundMenu ? '▲' : '▼'}</span>
+          </button>
+          {showFundMenu && (
+            <div className="border-t border-surface-border divide-y divide-surface-border">
+              {managedFunds.map((f) => (
+                <Link
+                  key={f.slug}
+                  href={`/hashtag/${hashtag.tag}?fund=${encodeURIComponent(f.slug)}`}
+                  className="flex items-center justify-between px-3 py-2 font-medium text-indigo-300 hover:text-indigo-200 hover:bg-surface transition-colors"
+                >
+                  <span>{f.name}</span>
+                  <span className="text-slate-500">→</span>
+                </Link>
+              ))}
             </div>
           )}
+        </div>
+      ) : null}
       <div className="flex items-center justify-between">
         <h2 className="font-semibold">Trade #{hashtag.displayTag}</h2>
         <span className="text-sm text-slate-400">

src/app/hashtag/[tag]/page.tsx

@@ -84,6 +84,16 @@ export default async function HashtagPage({ params, searchParams }: Props) {
     }
   }
 
+  // When not in fund mode, fetch funds this user manages for the fund-mode switcher
+  let managedFunds: { slug: string; name: string }[] = []
+  if (session && !fundContext) {
+    const managerships = await prisma.fundManager.findMany({
+      where: { userId: session.user.id },
+      include: { fund: { select: { slug: true, name: true } } },
+    })
+    managedFunds = managerships.map((m) => ({ slug: m.fund.slug, name: m.fund.name }))
+  }
+
   // Unknown hashtag — show research panel
   if (!hashtag || !hashtag.isActive) {
     return (
@@ -199,6 +209,7 @@ export default async function HashtagPage({ params, searchParams }: Props) {
           fundName={fundContext?.name}
           maxPositionShares={fundContext ? FUND_MAX_POSITION_SHARES : MAX_POSITION_SHARES}
           maxPositionValue={fundContext ? FUND_MAX_POSITION_VALUE : MAX_POSITION_VALUE}
+          managedFunds={managedFunds}
         />
       ) : (
         <div className="bg-surface-card border border-surface-border rounded-xl p-6 text-center">

src/components/Navbar.tsx

@@ -3,30 +3,34 @@
 import Link from 'next/link'
 import { useSession, signOut } from 'next-auth/react'
 import { TrendingUp, Search, User, LogOut, Shield, Trophy } from 'lucide-react'
-import { useState, useRef, useEffect } from 'react'
-import { useRouter } from 'next/navigation'
+import { useState, useRef, useEffect, Suspense } from 'react'
+import { useRouter, useSearchParams } from 'next/navigation'
 import { formatCurrency } from '@/lib/utils'
 import { normalizeTag } from '@/lib/utils'
 
 type Suggestion = { tag: string; displayTag: string; currentPrice: number }
 
-export function Navbar() {
-  const { data: session } = useSession()
+function NavSearchInner() {
   const router = useRouter()
+  const searchParams = useSearchParams()
+  const fundSlug = searchParams.get('fund')
   const [query, setQuery] = useState('')
   const [suggestions, setSuggestions] = useState<Suggestion[]>([])
   const [showSuggestions, setShowSuggestions] = useState(false)
   const debounceRef = useRef<ReturnType<typeof setTimeout> | null>(null)
 
-  function handleSearch(e: React.FormEvent) {
-    e.preventDefault()
-    const tag = normalizeTag(query)
-    if (tag) {
-      router.push(`/hashtag/${tag}`)
+  function navigate(tag: string) {
+    const url = fundSlug ? `/hashtag/${tag}?fund=${encodeURIComponent(fundSlug)}` : `/hashtag/${tag}`
+    router.push(url)
     setQuery('')
     setSuggestions([])
     setShowSuggestions(false)
   }
+
+  function handleSearch(e: React.FormEvent) {
+    e.preventDefault()
+    const tag = normalizeTag(query)
+    if (tag) navigate(tag)
   }
 
   function handleQueryChange(e: React.ChangeEvent<HTMLInputElement>) {
@@ -52,16 +56,6 @@ export function Navbar() {
   }
 
   return (
-    <nav className="border-b border-surface-border bg-surface-card">
-      <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
-        <div className="flex items-center justify-between h-14 gap-4">
-          {/* Logo */}
-          <Link href="/" className="flex items-center gap-2 shrink-0">
-            <TrendingUp className="h-6 w-6 text-indigo-500" />
-            <span className="font-bold text-lg hidden sm:block">HashEx</span>
-          </Link>
-
-          {/* Search */}
     <form onSubmit={handleSearch} className="flex-1 max-w-md">
       <div className="relative">
         <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-slate-500" />
@@ -71,7 +65,7 @@ export function Navbar() {
           onChange={handleQueryChange}
           onBlur={() => setTimeout(() => setShowSuggestions(false), 150)}
           onFocus={() => suggestions.length > 0 && setShowSuggestions(true)}
-                placeholder="#hashtag"
+          placeholder={fundSlug ? `#hashtag (as ${fundSlug})` : '#hashtag'}
           className="w-full bg-surface border border-surface-border rounded-lg pl-9 pr-3 py-1.5 text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500"
         />
         {showSuggestions && suggestions.length > 0 && (
@@ -80,12 +74,7 @@ export function Navbar() {
               <button
                 key={s.tag}
                 type="button"
-                      onMouseDown={() => {
-                        router.push(`/hashtag/${s.tag}`)
-                        setQuery('')
-                        setSuggestions([])
-                        setShowSuggestions(false)
-                      }}
+                onMouseDown={() => navigate(s.tag)}
                 className="w-full flex items-center justify-between px-3 py-2 text-sm hover:bg-surface-border transition-colors"
               >
                 <span className="font-medium">#{s.displayTag}</span>
@@ -96,6 +85,33 @@ export function Navbar() {
         )}
       </div>
     </form>
+  )
+}
+
+export function Navbar() {
+  const { data: session } = useSession()
+
+  return (
+    <nav className="border-b border-surface-border bg-surface-card">
+      <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
+        <div className="flex items-center justify-between h-14 gap-4">
+          {/* Logo */}
+          <Link href="/" className="flex items-center gap-2 shrink-0">
+            <TrendingUp className="h-6 w-6 text-indigo-500" />
+            <span className="font-bold text-lg hidden sm:block">HashEx</span>
+          </Link>
+
+          {/* Search — NavSearchInner uses useSearchParams() to preserve ?fund= context */}
+          <Suspense fallback={
+            <div className="flex-1 max-w-md">
+              <div className="relative">
+                <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-slate-500" />
+                <input disabled placeholder="#hashtag" className="w-full bg-surface border border-surface-border rounded-lg pl-9 pr-3 py-1.5 text-sm" />
+              </div>
+            </div>
+          }>
+            <NavSearchInner />
+          </Suspense>
 
           {/* Right section */}
           <div className="flex items-center gap-3 shrink-0">