chore: add DISABLE_FILESYSTEM_ENCRYPTION option

- Enhanced comments in docker-compose files to clarify the purpose of environment variables, including optional settings for UID, GID, and filesystem encryption.
- Introduced DISABLE_FILESYSTEM_ENCRYPTION variable to allow users to disable file encryption, making the ENCRYPTION_KEY optional.
- Updated documentation in quick-start guide to reflect changes in environment variable usage and security warnings.

apps/server/src/env.ts

@@ -3,6 +3,7 @@ import { z } from "zod";
 const envSchema = z.object({
   ENABLE_S3: z.union([z.literal("true"), z.literal("false")]).default("false"),
   ENCRYPTION_KEY: z.string().optional().default("palmr-default-encryption-key-2025"),
+  DISABLE_FILESYSTEM_ENCRYPTION: z.union([z.literal("true"), z.literal("false")]).default("false"),
   S3_ENDPOINT: z.string().optional(),
   S3_PORT: z.string().optional(),
   S3_USE_SSL: z.string().optional(),