update fetch server to use readability JS if node is installed

src/fetch/README.md

@@ -16,6 +16,8 @@ Presently the server only supports fetching HTML content.
 
 ## Installation
 
+Optionally: Install node.js, this will cause the fetch serve to use a different HTML simplifier that is more robust.
+
 ### Using uv (recommended)
 
 When using [`uv`](https://docs.astral.sh/uv/) no specific installation is needed. We will

src/fetch/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "mcp-server-fetch"
-version = "0.1.2"
+version = "0.1.3"
 description = "A Model Context Protocol server providing tools to fetch and convert web content for usage by LLMs"
 readme = "README.md"
 requires-python = ">=3.10"

src/fetch/src/mcp_server_fetch/server.py

@@ -24,11 +24,13 @@ DEFAULT_USER_AGENT_MANUAL = "ModelContextProtocol/1.0 (User-Specified; +https://
 
 
 def extract_content(html: str) -> str:
-    ret = readabilipy.simple_json.simple_json_from_html_string(html)
+    ret = readabilipy.simple_json.simple_json_from_html_string(
+        html, use_readability=True
+    )
     if not ret["plain_content"]:
         return "<error>Page failed to be simplified from HTML</error>"
     content = markdownify.markdownify(
-        ret["plain_content"],
+        ret["content"],
         heading_style=markdownify.ATX,
     )
     return content