fix: version guard uses static file, members table shows project name with round badge

Version guard:
- Replace API route with prebuild-generated public/build-id.json
- Captures build ID on first load, only notifies on mismatch
- Fixes false positive refresh prompts from env mismatch

Members table (applicants):
- Show project name + round badge instead of round name + state
- Red badge for rejected, gray for withdrawn, green for passed,
  outline for active rounds
- Include projectName in applicantRoundInfo from backend

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/shared/version-guard.tsx

@@ -3,7 +3,9 @@
 import { useEffect, useRef } from 'react'
 import { toast } from 'sonner'
 
-const CLIENT_BUILD_ID = process.env.NEXT_PUBLIC_BUILD_ID
+// Capture the build ID when this module first loads (from the current deployment's JS bundle).
+// On subsequent fetches of /build-id.json, if the value differs, a new deploy happened.
+let initialBuildId: string | null = null
 
 export function VersionGuard() {
   const notified = useRef(false)
@@ -12,10 +14,19 @@ export function VersionGuard() {
     async function checkVersion() {
       if (notified.current) return
       try {
-        const res = await fetch('/api/version', { cache: 'no-store' })
+        const res = await fetch('/build-id.json?t=' + Date.now())
         if (!res.ok) return
         const { buildId } = await res.json()
-        if (buildId && CLIENT_BUILD_ID && buildId !== CLIENT_BUILD_ID) {
+        if (!buildId) return
+
+        // First load — capture the build ID
+        if (initialBuildId === null) {
+          initialBuildId = buildId
+          return
+        }
+
+        // Subsequent checks — compare
+        if (buildId !== initialBuildId) {
           notified.current = true
           toast('A new version is available', {
             description: 'Refresh to get the latest updates.',
@@ -31,6 +42,9 @@ export function VersionGuard() {
       }
     }
 
+    // Initial check (captures build ID)
+    checkVersion()
+
     // Check on tab focus (covers users returning to stale tabs)
     window.addEventListener('focus', checkVersion)