chore: update config readme

Author: himanshusinghs

CONFIGURATION.md

@@ -30,6 +30,7 @@ The MongoDB MCP Server can be configured using multiple methods, with the follow
 | `connectionString`                     | `MDB_MCP_CONNECTION_STRING`                         | `<not set>`                                                                                            | MongoDB connection string for direct database connections. Optional, if not set, you'll need to call the connect tool before interacting with MongoDB data.                                     |
 | `disableEmbeddingsValidation`          | `MDB_MCP_DISABLE_EMBEDDINGS_VALIDATION`             | `false`                                                                                                | When set to true, disables validation of embeddings dimensions.                                                                                                                                 |
 | `disabledTools`                        | `MDB_MCP_DISABLED_TOOLS`                            | `""`                                                                                                   | Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.                                                                                        |
+| `dry`                                  | `MDB_MCP_DRY`                                       | `false`                                                                                                | When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.                                                                          |
 | `exportCleanupIntervalMs`              | `MDB_MCP_EXPORT_CLEANUP_INTERVAL_MS`                | `120000`                                                                                               | Time in milliseconds between export cleanup cycles that remove expired export files.                                                                                                            |
 | `exportTimeoutMs`                      | `MDB_MCP_EXPORT_TIMEOUT_MS`                         | `300000`                                                                                               | Time in milliseconds after which an export is considered expired and eligible for cleanup.                                                                                                      |
 | `exportsPath`                          | `MDB_MCP_EXPORTS_PATH`                              | see below\*                                                                                            | Folder to store exported data files.                                                                                                                                                            |

server.json

@@ -65,6 +65,13 @@
           "format": "string",
           "isSecret": false
         },
+        {
+          "name": "MDB_MCP_DRY",
+          "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
+          "isRequired": false,
+          "format": "boolean",
+          "isSecret": false
+        },
         {
           "name": "MDB_MCP_EXPORT_CLEANUP_INTERVAL_MS",
           "description": "Time in milliseconds between export cleanup cycles that remove expired export files.",
@@ -236,6 +243,13 @@
           "description": "Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.",
           "isRequired": false
         },
+        {
+          "type": "named",
+          "name": "--dry",
+          "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
+          "isRequired": false,
+          "format": "boolean"
+        },
         {
           "type": "named",
           "name": "--exportCleanupIntervalMs",
@@ -406,6 +420,13 @@
           "format": "string",
           "isSecret": false
         },
+        {
+          "name": "MDB_MCP_DRY",
+          "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
+          "isRequired": false,
+          "format": "boolean",
+          "isSecret": false
+        },
         {
           "name": "MDB_MCP_EXPORT_CLEANUP_INTERVAL_MS",
           "description": "Time in milliseconds between export cleanup cycles that remove expired export files.",
@@ -577,6 +598,13 @@
           "description": "Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.",
           "isRequired": false
         },
+        {
+          "type": "named",
+          "name": "--dry",
+          "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
+          "isRequired": false,
+          "format": "boolean"
+        },
         {
           "type": "named",
           "name": "--exportCleanupIntervalMs",