Text-to-SQL proof of concept (#5788)

Added:
- An "Ask AI" command to the command menu.
- A simple GraphQL resolver that converts the user's question into a
relevant SQL query using an LLM, runs the query, and returns the result.

<img width="428" alt="Screenshot 2024-06-09 at 20 53 09"
src="https://github.com/twentyhq/twenty/assets/171685816/57127f37-d4a6-498d-b253-733ffa0d209f">

No security concerns have been addressed, this is only a
proof-of-concept and not intended to be enabled in production.

All changes are behind a feature flag called `IS_ASK_AI_ENABLED`.

---------

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>

packages/twenty-website/src/content/developers/self-hosting/self-hosting-var.mdx

@@ -170,8 +170,13 @@ yarn command:prod cron:calendar:google-calendar-sync
 ### Data enrichment and AI
 
 <ArticleTable options={[
-    ['OPENROUTER_API_KEY', '', "The API key for openrouter.ai, an abstraction layer over models from Mistral, OpenAI and more"]
-    ]}></ArticleTable>
+    ['OPENROUTER_API_KEY', '', "The API key for openrouter.ai, an abstraction layer over models from Mistral, OpenAI and more"],
+    ['OPENAI_API_KEY', 'sk-proj-abcdabcd...', "OpenAI API key"],
+    ['LLM_CHAT_MODEL_DRIVER', 'openai', "LLM provider"],
+    ['LLM_TRACING_DRIVER', 'langfuse', "Where to output LangChain logs. 'langfuse' or 'console'."],
+    ['LANGFUSE_SECRET_KEY', 'sk-lf-abcdabcd-abcd...', "Langfuse secret key"],
+    ['LANGFUSE_PUBLIC_KEY', 'pk-lf-abcdabcd-abcd...', "Langfuse public key"],
+]}></ArticleTable>
 
 
 ### Support Chat