Update .gitignore to include sync-mods-from-client.ps1 for better management of server scripts and update Minecraft instance configuration to reflect the latest mod loader details.

Server/config/collective.json5

@@ -0,0 +1,14 @@
+{
+	// Whether Collective should show a message in the console if a dependent mod has an update available. Update checks are optional and async.
+	"enableUpdateChecker": true,
+	// When enabled, transfer the held items and armour from replaced entities by any of the Entity Spawn mods which depend on Collective.
+	"transferItemsBetweenReplacedEntities": true,
+	// The amount of times Collective loops through possible mob drops to get them all procedurally. Drops are only generated when a dependent mod uses them. Lowering this can increase world load time but decrease accuracy.
+	// min: 1, max: 500
+	"loopsAmountUsedToGetAllEntityDrops": 100,
+	// The delay of the is-there-a-block-around-check around entities in ms. Used in mods which depends on a specific blockstate in the world. Increasing this number can increase TPS if needed.
+	// min: 0, max: 3600000
+	"findABlockCheckAroundEntitiesDelayMs": 30000,
+	// Enables pets for Patrons. Will be added in a future release.
+	"enablePatronPets": true
+}

Server/config/doubledoors.json5

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+{
+	// Whether the recursive opening feature should be enabled. This allows you to for example build a giant door with trapdoors which will all open at the same time, as long as they are connected. The 'recursiveOpeningMaxBlocksDistance' config option determines how far the function should search.
+	"enableRecursiveOpening": true,
+	// How many blocks the recursive function should search when 'enableRecursiveOpening' is enabled.
+	// min: 1, max: 64
+	"recursiveOpeningMaxBlocksDistance": 10,
+	// When enables, the mod works with double doors.
+	"enableDoors": true,
+	// When enables, the mod works with double fence gates.
+	"enableFenceGates": false,
+	// When enables, the mod works with double trapdoors.
+	"enableTrapdoors": false,
+	// Checks if there are other mods loaded with double door functionality, such as Quark. If found, it edits a line in their config to disable double doors. Fixes doors not opening due to code being ran twice.
+	"enableModIncompatibilityCheck": true
+}

Server/sync-mods-from-client.ps1

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+#!/usr/bin/env pwsh
+# Копирует *.jar из ../mods в ./mods (тот же инстанс).
+# Не копирует jar, если имя совпадает с одним из шаблонов ниже (только клиент).
+# Шаблоны — как в PowerShell -like: * и ? (регистр не важен).
+# Выключенные NeoForge (*.jar.disabled) фильтром *.jar не подхватываются.
+# Односторонняя синхронизация: клиент -> сервер. Лишние jar на сервере не удаляются.
+param(
+    [switch] $DryRun
+)
+
+$ErrorActionPreference = "Stop"
+
+# Дополняй при установке новых клиентских модов.
+$ClientOnlyJarLikePatterns = @(
+    'BadOptimizations-*'
+    'BetterF3-*'
+    'BHMenu-*'
+    'catalogue-*'
+    'clientcrafting-*'
+    'Controlling-*'
+    'defaultoptions-*'
+    'dynamic-fps-*'
+    'entity_model_features_*'
+    'entity_texture_features_*'
+    'entityculling-*'
+    'fast-ip-ping-*'
+    'fancymenu_*'
+    'gpumemleakfix-*'
+    'ImmediatelyFast-*'
+    'iris-*'
+    'konkrete_*'
+    'loadingbackgrounds-*'
+    'mace3d-*'
+    'melody_*'
+    'MouseTweaks-*'
+    'reeses-sodium-options-*'
+    'sodium-neoforge-*'
+    'sodiumextras-*'
+    'sodiumoptionsapi-*'
+    'time_on_display-*'
+    'ToastControl-*'
+)
+
+function Test-ClientOnlyJarName([string] $fileName) {
+    foreach ($pattern in $ClientOnlyJarLikePatterns) {
+        if ($fileName -like $pattern) {
+            return $true
+        }
+    }
+    return $false
+}
+
+$instanceRoot = Split-Path $PSScriptRoot -Parent
+$src = Join-Path $instanceRoot "mods"
+$dst = Join-Path $PSScriptRoot "mods"
+
+if (-not (Test-Path -LiteralPath $src)) {
+    Write-Error "Клиентские моды не найдены: $src"
+}
+
+if (-not (Test-Path -LiteralPath $dst)) {
+    if ($DryRun) {
+        Write-Host "[dry-run] Создал бы папку: $dst"
+    } else {
+        New-Item -ItemType Directory -Path $dst -Force | Out-Null
+    }
+}
+
+$copied = [System.Collections.Generic.List[string]]::new()
+$skippedClient = 0
+
+foreach ($jar in Get-ChildItem -LiteralPath $src -File -Filter "*.jar") {
+    if (Test-ClientOnlyJarName $jar.Name) {
+        $skippedClient++
+        if ($DryRun) {
+            Write-Host "[dry-run] пропуск (клиент): $($jar.Name)"
+        }
+        continue
+    }
+
+    $destPath = Join-Path $dst $jar.Name
+    $copied.Add($jar.Name) | Out-Null
+
+    if ($DryRun) {
+        Write-Host "[dry-run] $($jar.FullName) -> $destPath"
+        continue
+    }
+
+    Copy-Item -LiteralPath $jar.FullName -Destination $destPath -Force
+}
+
+Write-Host ("Синхронизировано {0} jar: клиент -> Server/mods." -f $copied.Count)
+if ($skippedClient -gt 0) {
+    Write-Host ("Пропущено клиентских (по списку в скрипте): {0}" -f $skippedClient)
+}
+if ($copied.Count -gt 0 -and $VerbosePreference -eq "Continue") {
+    $copied | Sort-Object | ForEach-Object { Write-Host "  $_" }
+}