🤖 feat(google): Add safety settings configuration (#2644)

* 🤖 feat(google): Add safety settings configuration

- Implement safety settings configuration in GoogleClient.js
- Add safety settings variables in .env.example
- Update documentation to explain safety settings and clarify model usage

* fix(google): Apply safety settings only to Gemini models

Previously, the safety settings were being applied to all models, regardless of whether they were Gemini models or not. This commit ensures that the safety settings are only applied to models that contain the "gemini" string in their name.

The changes include:

- Extracting the model name from `payload.parameters.model`
- Checking if the model name exists and contains the "gemini" string
- Only applying the safety settings if the model name contains "gemini"
- Ignoring the safety settings for non-Gemini models

This fix ensures that the safety settings are only used for the intended Gemini models, and not applied to other models where they may not be applicable.

* Update GoogleClient.js

* fix(google): Apply safety settings only to Gemini models

---------

Co-authored-by: Oliver Faust <oliver@f4ust.de>

.env.example

@@ -122,6 +122,20 @@ GOOGLE_KEY=user_provided
 # Vertex AI
 # GOOGLE_MODELS=gemini-1.5-pro-preview-0409,gemini-1.0-pro-vision-001,gemini-pro,gemini-pro-vision,chat-bison,chat-bison-32k,codechat-bison,codechat-bison-32k,text-bison,text-bison-32k,text-unicorn,code-gecko,code-bison,code-bison-32k
 
+# Google Gemini Safety Settings
+# NOTE (Vertex AI): You do not have access to the BLOCK_NONE setting by default.
+# To use this restricted HarmBlockThreshold setting, you will need to either:
+#
+# (a) Get access through an allowlist via your Google account team
+# (b) Switch your account type to monthly invoiced billing following this instruction:
+#     https://cloud.google.com/billing/docs/how-to/invoiced-billing
+#
+# GOOGLE_SAFETY_SEXUALLY_EXPLICIT=BLOCK_ONLY_HIGH
+# GOOGLE_SAFETY_HATE_SPEECH=BLOCK_ONLY_HIGH
+# GOOGLE_SAFETY_HARASSMENT=BLOCK_ONLY_HIGH
+# GOOGLE_SAFETY_DANGEROUS_CONTENT=BLOCK_ONLY_HIGH
+
+
 #============#
 # OpenAI     #
 #============#