feat: team org panel, admin CRUD, local deploy tools, bidirectional data sync

Add TeamMember model and APIs, team status UI, /admin page, local server bats,
and scripts to sync data between local PostgreSQL and Render.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/get-lan-ip.ps1

@@ -0,0 +1,4 @@
+$ip = Get-NetIPAddress -AddressFamily IPv4 -ErrorAction SilentlyContinue |
+  Where-Object { $_.IPAddress -match '^(172\.|192\.168\.|10\.)' } |
+  Select-Object -First 1 -ExpandProperty IPAddress
+if ($ip) { Write-Output $ip }

scripts/kill-ports.ps1

@@ -0,0 +1,11 @@
+$ports = @(4000, 3000, 3001)
+$killed = @()
+Get-NetTCPConnection -State Listen -ErrorAction SilentlyContinue |
+  Where-Object { $ports -contains $_.LocalPort } |
+  ForEach-Object {
+    $pid = $_.OwningProcess
+    if ($killed -notcontains $pid) {
+      Stop-Process -Id $pid -Force -ErrorAction SilentlyContinue
+      $killed += $pid
+    }
+  }

scripts/wait-db.ps1

@@ -0,0 +1,9 @@
+$ok = $false
+1..30 | ForEach-Object {
+  if (Test-NetConnection -ComputerName localhost -Port 5432 -WarningAction SilentlyContinue -ErrorAction SilentlyContinue | Where-Object { $_.TcpTestSucceeded }) {
+    $ok = $true
+    break
+  }
+  Start-Sleep -Seconds 1
+}
+if (-not $ok) { exit 1 }