feat: version string formatting yy.mm.dd.hhmmss, app icon, and test fixes

deploy.ps1

@@ -1,4 +1,32 @@
-Get-Process mcp-memory-* -ErrorAction SilentlyContinue | Stop-Process -Force
-Start-Sleep -Seconds 2
-foreach ($b in @('mcp-memory-server.exe', 'mcp-memory-stub.exe', 'mcp-memory-win-nvim.exe')) { $s = 'target\release\' + $b; $d = 'C:\Users\reazul.ashraf\.local\bin\' + $b; if (Test-Path $d) { Remove-Item ($d + '.bak') -Force -ErrorAction SilentlyContinue; Rename-Item $d ($b + '.bak') -Force -ErrorAction SilentlyContinue }; Copy-Item $s $d -Force }
-& 'C:\Users\reazul.ashraf\.local\bin\mcp-memory-server.exe' --daemon
+try {
+    Write-Host "Gracefully shutting down server..."
+    Invoke-RestMethod -Method Post -Uri "http://127.0.0.1:3000/shutdown" -ErrorAction SilentlyContinue
+    Start-Sleep -Seconds 2
+} catch {
+    Write-Host "Server might already be down or unreachable."
+}
+
+$binaries = @('mcp-memory-server.exe', 'mcp-memory-stub.exe', 'mcp-memory-win-nvim.exe')
+$timestamp = (Get-Date -UFormat "%s") -replace "\.",""
+
+foreach ($b in $binaries) { 
+    $s = "target\release\$b"
+    $d = "C:\Users\reazul.ashraf\.local\bin\$b"
+    
+    if (Test-Path $d) { 
+        $backupName = "$b.$timestamp.bak"
+        Write-Host "Renaming $b to $backupName to avoid file locks..."
+        Rename-Item $d $backupName -Force -ErrorAction SilentlyContinue
+    }
+    
+    if (Test-Path $s) {
+        Write-Host "Deploying new $b..."
+        Copy-Item $s $d -Force
+    } else {
+        Write-Host "Warning: $s not found, skipping."
+    }
+}
+
+Write-Host "Starting new mcp-memory-server daemon..."
+Start-Process -FilePath "C:\Users\reazul.ashraf\.local\bin\mcp-memory-server.exe" -WindowStyle Hidden
+Write-Host "Deployment complete."