feat: enhance environment variable handling for shell commands

- Added `prepareEnvironmentVariablesForShell` function to properly escape environment variables for shell usage.
- Updated various builders (Docker, Heroku, Nixpacks, Paketo, Railpack) to utilize the new function for improved handling of special characters in environment variables.
- Introduced tests to validate the handling of environment variables with various special characters, ensuring robustness in shell command execution.
- Added `shell-quote` dependency to manage quoting of shell arguments effectively.

packages/server/src/utils/docker/utils.ts

@@ -5,6 +5,7 @@ import { docker, paths } from "@dokploy/server/constants";
 import type { Compose } from "@dokploy/server/services/compose";
 import type { ContainerInfo, ResourceRequirements } from "dockerode";
 import { parse } from "dotenv";
+import { quote } from "shell-quote";
 import type { ApplicationNested } from "../builders";
 import type { MariadbNested } from "../databases/mariadb";
 import type { MongoNested } from "../databases/mongo";
@@ -310,6 +311,21 @@ export const prepareEnvironmentVariables = (
 	return resolvedVars;
 };
 
+export const prepareEnvironmentVariablesForShell = (
+	serviceEnv: string | null,
+	projectEnv?: string | null,
+	environmentEnv?: string | null,
+): string[] => {
+	const envVars = prepareEnvironmentVariables(
+		serviceEnv,
+		projectEnv,
+		environmentEnv,
+	);
+	// Using shell-quote library to properly escape shell arguments
+	// This is the standard way to handle special characters in shell commands
+	return envVars.map((env) => quote([env]));
+};
+
 export const parseEnvironmentKeyValuePair = (
 	pair: string,
 ): [string, string] => {