## Description
This PR is to add the Gemini Data Analytics (GDA) integration for DB
NL2SQL conversion to Toolbox. It allows the user to convert a natural
language query to SQL statement based on their database instance. See
the doc section for details.
## PR Checklist
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[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
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- [x] Ensure the tests and linter pass
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🛠️Fixes#2180
---------
Co-authored-by: Yuan Teoh <45984206+Yuan325@users.noreply.github.com>
Allow Toolbox server to automatically update when users modify their
tool configuration file(s), instead of requiring a restart.
This feature is automatically enabled, but can be turned off with the
flag `--disable-reload`.
Rename existing `authSource` to `authService` through deprecation.
`AuthService` more clearly distinguishes it from `Sources` objects.
`authSources` will be converted into `authServices` after the
unmarshalling process. A warning log is shown if `authSources` are used
(for both within tools parameters and defining auth services):
```
2025-02-20T13:57:51.156025-08:00 WARN "`authSources` is deprecated, use `authServices` for parameters instead"
2025-02-20T13:57:51.156569-08:00 WARN "`authSources` is deprecated, use `authServices` instead"
2025-02-20T13:57:52.047584-08:00 INFO "Initialized 1 sources."
...
```
The manifest generated will continue to use `authSources` to keep
compatibility with the sdks:
```
{
"serverVersion":"0.1.0",
"tools":{
"test_tool2":{
"description":"Use this tool to test\n",
"parameters":[{
"name":"user_id",
"type":"string",
"description":"Auto-populated from Google login",
"authSources":["my-google-auth"]
}]
}
}
}
```
Test cases with `authSources` are kept for compatibility. Will be
removed when `authSources` are no longer supported.
