Windows filesystem MCP enhancements (#543)

* fix: comprehensive Windows path handling improvements

- Add path-utils module for consistent path handling
- Handle Windows paths with spaces via proper quoting
- Support Unix-style Windows paths (/c/path)
- Support WSL paths (/mnt/c/path)
- Add comprehensive test coverage
- Fix path normalization for all path formats

Closes #447

* tested locally and working now

* Add filesystem path utils and tests

* Ensure Windows drive letters are capitalized in normalizePath

* adding test for gh pr comment

* pushing jest and windows testing config

* last commit? fixing comments on PR

* Fix bin and bump sdk

* Remove redundant commonjs version of path-utils and import from ts version

* Remove copying cjs file

* Remove copying run-server

* Remove complex args parsing and do other cleanup

* Add missing tools details to Readme

* Move utility functions from index to lib

* Add more tests and handle very small and very large files edge cases

* Finish refactoring and include original security fix comments

* On Windows, also check for drive root

* Check symlink support on restricted Windows environments

* Fix tests

* Bump SDK and package version

* Clean up

---------

Co-authored-by: olaservo <olahungerford@gmail.com>
Co-authored-by: adam jones <adamj+git@anthropic.com>

src/filesystem/README.md

@@ -73,6 +73,7 @@ The server's directory access control follows this flow:
     - `head` (number, optional): First N lines
     - `tail` (number, optional): Last N lines
   - Always treats the file as UTF-8 text regardless of extension
+  - Cannot specify both `head` and `tail` simultaneously
 
 - **read_media_file**
   - Read an image or audio file
@@ -119,6 +120,23 @@ The server's directory access control follows this flow:
   - List directory contents with [FILE] or [DIR] prefixes
   - Input: `path` (string)
 
+- **list_directory_with_sizes**
+  - List directory contents with [FILE] or [DIR] prefixes, including file sizes
+  - Inputs:
+    - `path` (string): Directory path to list
+    - `sortBy` (string, optional): Sort entries by "name" or "size" (default: "name")
+  - Returns detailed listing with file sizes and summary statistics
+  - Shows total files, directories, and combined size
+
+- **directory_tree**
+  - Get a recursive tree view of files and directories as a JSON structure
+  - Input: `path` (string): Starting directory path
+  - Returns JSON structure with:
+    - `name`: File/directory name
+    - `type`: "file" or "directory"
+    - `children`: Array of child entries (for directories only)
+  - Output is formatted with 2-space indentation for readability
+
 - **move_file**
   - Move or rename files and directories
   - Inputs: