deploy: docs: add pre/post processing docs for ADK Python (googleapis#2534)

## Description

Created again on accidental deletion of
googleapis#2433

## PR Checklist

> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:

- [ ] Make sure you reviewed

[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [ ] Make sure to open an issue as a

[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
  before writing your code! That way we can discuss the change, evaluate
  designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)
- [ ] Make sure to add `!` if this involve a breaking change

🛠️ Fixes #<issue_number_goes_here>

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> 0158206

Author: Anthrino

dev/404.html

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>About on MCP Toolbox for Databases</title><link>https://Anthrino.github.io/genai-toolbox/dev/about/</link><description>Recent content in About on MCP Toolbox for Databases</description><generator>Hugo</generator><language>en</language><atom:link href="https://Anthrino.github.io/genai-toolbox/dev/about/index.xml" rel="self" type="application/rss+xml"/><item><title>FAQ</title><link>https://Anthrino.github.io/genai-toolbox/dev/about/faq/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://Anthrino.github.io/genai-toolbox/dev/about/faq/</guid><description>&lt;h2 id="how-can-i-deploy-or-run-toolbox">How can I deploy or run Toolbox?&lt;/h2>
+&lt;p>MCP Toolbox for Databases is open-source and can be run or deployed to a
+multitude of environments. For convenience, we release &lt;a href="https://github.com/googleapis/genai-toolbox/releases/">compiled binaries and
+docker images&lt;/a> (but you can always compile yourself as well!).&lt;/p>
+&lt;p>For detailed instructions, check out these resources:&lt;/p>
+&lt;ul>
+&lt;li>&lt;a href="https://Anthrino.github.io/genai-toolbox/dev/getting-started/local_quickstart/">Quickstart: How to Run Locally&lt;/a>&lt;/li>
+&lt;li>&lt;a href="https://Anthrino.github.io/genai-toolbox/dev/how-to/deploy_toolbox/">Deploy to Cloud Run&lt;/a>&lt;/li>
+&lt;/ul>
+&lt;h2 id="do-i-need-a-google-cloud-accountproject-to-get-started-with-toolbox">Do I need a Google Cloud account/project to get started with Toolbox?&lt;/h2>
+&lt;p>Nope! While some of the sources Toolbox connects to may require GCP credentials,
+Toolbox doesn&amp;rsquo;t require them and can connect to a bunch of different resources
+that don&amp;rsquo;t.&lt;/p></description></item></channel></rss>

dev/about/faq/index.html

@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Featured Articles on MCP Toolbox for Databases</title><link>https://Anthrino.github.io/genai-toolbox/dev/blogs/</link><description>Recent content in Featured Articles on MCP Toolbox for Databases</description><generator>Hugo</generator><language>en</language><atom:link href="https://Anthrino.github.io/genai-toolbox/dev/blogs/index.xml" rel="self" type="application/rss+xml"/></channel></rss>

dev/about/index.html

@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Categories on MCP Toolbox for Databases</title><link>https://Anthrino.github.io/genai-toolbox/dev/categories/</link><description>Recent content in Categories on MCP Toolbox for Databases</description><generator>Hugo</generator><language>en</language><atom:link href="https://Anthrino.github.io/genai-toolbox/dev/categories/index.xml" rel="self" type="application/rss+xml"/></channel></rss>

dev/about/index.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Concepts on MCP Toolbox for Databases</title><link>https://Anthrino.github.io/genai-toolbox/dev/concepts/</link><description>Recent content in Concepts on MCP Toolbox for Databases</description><generator>Hugo</generator><language>en</language><atom:link href="https://Anthrino.github.io/genai-toolbox/dev/concepts/index.xml" rel="self" type="application/rss+xml"/><item><title>Telemetry</title><link>https://Anthrino.github.io/genai-toolbox/dev/concepts/telemetry/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://Anthrino.github.io/genai-toolbox/dev/concepts/telemetry/</guid><description>&lt;h2 id="about">About&lt;/h2>
+&lt;p>Telemetry data such as logs, metrics, and traces will help developers understand
+the internal state of the system. This page walks though different types of
+telemetry and observability available in Toolbox.&lt;/p>
+&lt;p>Toolbox exports telemetry data of logs via standard out/err, and traces/metrics
+through &lt;a href="https://opentelemetry.io/">OpenTelemetry&lt;/a>. Additional flags can be
+passed to Toolbox to enable different logging behavior, or to export metrics
+through a specific &lt;a href="https://Anthrino.github.io/genai-toolbox/dev/concepts/telemetry/#exporter">exporter&lt;/a>.&lt;/p>
+&lt;h2 id="logging">Logging&lt;/h2>
+&lt;p>The following flags can be used to customize Toolbox logging:&lt;/p></description></item></channel></rss>