docs: remove toc from first tool guide and add unique ids to markdown

headers

- The default table of contents is incompatible with tabs, so remove it
  from the first-tool guide
- Auto-generated IDs for markdown headers in the first-tool page aren't
  unique, so generate unique IDs and inject them at snippet fetch time
- Re-fetch latest README.md files from `*-hash-tool` repos to fix
  guide doc formatting issues

Signed-off-by: Nick Hale <[email protected]>

docs/docs/03-guides/01-first-tool.mdx

@@ -1,3 +1,7 @@
+---
+hide_table_of_contents: true
+---
+
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 
@@ -14,16 +18,16 @@ The following guides will show you how to write and package custom Tools in Pyth
 unleashing the full potential of your Agents by enabling them to integrate with any data source, service,
 or platform with just a few lines of code.
 
-<Tabs>
-  <TabItem value="python" label="Python" default>
-    <PythonHashToolReadme />
+<Tabs queryString="language">
+  <TabItem value="python" label="Python" id="python-tab">
+      <PythonHashToolReadme />
   </TabItem>
 
-  <TabItem value="node" label="Node.js" default>
-    <NodeHashToolReadme />
+  <TabItem value="node" label="Node.js" id="node-tab">
+      <NodeHashToolReadme />
   </TabItem>
 
-  <TabItem value="go" label="Go" default>
-    <GoHashToolReadme />
+  <TabItem value="go" label="Go" id="go-tab">
+      <GoHashToolReadme />
   </TabItem>
 </Tabs>