Docs: Update README with Proxmox deployment guide and add deployment scripts

deploy-remote.ps1

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+<#
+.SYNOPSIS
+    Automated Update Script for Vendor Inventory (Remote)
+.DESCRIPTION
+    Reads configuration from deploy-config.json.
+    Connects to the remote server, pulls the latest code, installs dependencies, and restarts the service.
+#>
+
+$ErrorActionPreference = "Stop"
+$ConfigPath = Join-Path $PSScriptRoot "deploy-config.json"
+
+if (-not (Test-Path $ConfigPath)) {
+    Write-Error "Configuration file not found: $ConfigPath"
+    exit 1
+}
+
+$Config = Get-Content $ConfigPath | ConvertFrom-Json
+$HostName = $Config.host
+$User = $Config.username
+$Password = $Config.password
+$RemotePath = $Config.remotePath
+
+Write-Host "Connecting to $User@$HostName for update..." -ForegroundColor Cyan
+
+# Check for plink
+if (-not (Get-Command "plink" -ErrorAction SilentlyContinue)) {
+    Write-Error "Plink (PuTTY Link) is required but not found. Please install PuTTY."
+    exit 1
+}
+
+# Commands to run on remote
+$RemoteCommands = "
+    echo '📂 Navigating to $RemotePath...'
+    cd $RemotePath
+    
+    echo '⬇️ Pulling latest changes...'
+    git pull
+    
+    echo '📦 Installing dependencies...'
+    npm install
+    
+    echo '🚀 Restarting Service...'
+    systemctl restart connect5
+    
+    echo '✅ Status Check:'
+    systemctl status connect5 --no-pager
+"
+
+# Execute
+$RemoteCommands = $RemoteCommands -replace "`r`n", "`n"
+echo y | plink -ssh -P 22 -t -pw $Password "$User@$HostName" $RemoteCommands
+
+Write-Host "`nUpdate Sequence Completed." -ForegroundColor Green