test(tools): add unit tests for error handling functions

* Implement tests for error functions like errRequiredField, errInvalidField, and errEntityNotFound.
* Ensure proper metadata is returned for various error scenarios.
* Validate error handling in CRM, Files, and other tools.
* Introduce tests for parsing stored file IDs and UUIDs.
* Enhance coverage for helper functions related to project resolution and session management.

configs/config.example.yaml

@@ -10,8 +10,8 @@ server:
 mcp:
   path: "/mcp"
   server_name: "amcs"
-  version: "0.1.0"
   transport: "streamable_http"
+  session_timeout: "10m"
 
 auth:
   header_name: "x-brain-key"

configs/dev.yaml

@@ -10,8 +10,8 @@ server:
 mcp:
   path: "/mcp"
   server_name: "amcs"
-  version: "0.1.0"
   transport: "streamable_http"
+  session_timeout: "10m"
 
 auth:
   header_name: "x-brain-key"

configs/docker.yaml

@@ -10,8 +10,8 @@ server:
 mcp:
   path: "/mcp"
   server_name: "amcs"
-  version: "0.1.0"
   transport: "streamable_http"
+  session_timeout: "10m"
 
 auth:
   header_name: "x-brain-key"