Add Documentation for the settings on the Khoj Admin Panel

This is an initial pass to add documentation for all the knobs
available on the Khoj Admin panel.

It should shed some light onto what each admin setting is for and how
they can be customized when self hosting.

Resolves #831

documentation/docs/advanced/admin.md

@@ -0,0 +1,73 @@
+# Admin Panel
+> Describes the Khoj settings configurable via the admin panel
+
+## App Settings
+### Agents
+Add all the agents you want to use for your different use-cases like Writer, Researcher, Therapist etc.
+- `Personality`: This is a prompt to tell the chat model how to tune the personality of the agent.
+- `Chat model`: The chat model to use for the agent.
+- `Name`: The name of the agent. This field helps give the agent a unique identity across the app.
+- `Avatar`: Url to the agents profile picture. It help give the agent a unique visual identity across the app.
+- `Style color`, `Style icon`: These fields help give the agent a unique, visually identifiable identity across the app.
+- `Slug`: This is the agent name to use in urls.
+- `Public`: Check this if the agent is expected to be visible to all users on this Khoj server.
+- `Managed by admin`: Check this if the agent is managed by admin, not by any user.
+- `Creator`: The user who created the agent.
+- `Tools`: The list of tools available to this agent. Tools include notes, image, online. This field is not currently configurable and only supports all tools (i.e `["*"]`)
+
+### Chat Model Options
+Add all the chat models you want to try, use and switch between for your different use-cases. For each chat model you add:
+- `Chat model`: The name of an [OpenAI](https://platform.openai.com/docs/models), [Anthropic](https://docs.anthropic.com/en/docs/about-claude/models#model-names), [Gemini](https://cloud.google.com/vertex-ai/generative-ai/docs/learn/models#gemini-models) or [Offline](https://huggingface.co/models?pipeline_tag=text-generation&library=gguf) chat model.
+- `Model type`: The chat model provider like `OpenAI`, `Offline`.
+- `Vision enabled`: Set to `true` if your model supports vision. This is currently only supported for vision capable OpenAI models like `gpt-4o`
+- `Max prompt size`, `Subscribed max prompt size`: These are optional fields. They are used to truncate the context to the maximum context size that can be passed to the model. This can help with accuracy and cost-saving.<br />
+- `Tokenizer`: This is an optional field. It is used to accurately count tokens and truncate context passed to the chat model to stay within the models max prompt size.
+  ![example configuration for chat model options](/img/example_chatmodel_option.png)
+
+### Server Chat Settings
+The server chat settings are used as:
+1. The default chat models for subscribed (`Advanced` field) and unsubscribed (`Default` field) users.
+2. The chat model for all intermediate steps like intent detection, web search etc. during chat response generation.
+
+If a server chat setting is not added the first ChatModelOption in your config is used as the default chat model.
+
+To add a server chat setting:
+- Set your preferred default chat models in the `Default` fields of your [ServerChatSettings](http://localhost:42110/server/admin/database/serverchatsettings/)
+- The `Advanced` field doesn't need to be set when self-hosting. When unset, the `Default` chat model is used for all users and the intermediate steps.
+
+
+### OpenAI Processor Conversation Configs
+These settings configure chat model providers to be accessed over API.
+The name of this setting is kind of a misnomer, we know, it'll hopefully be changed at some point.
+For each chat model provider you [add](http://localhost:42110/server/admin/database/openaiprocessorconversationconfig/add):
+- `Api key`: Set to your [OpenAI](https://platform.openai.com/api-keys), [Anthropic](https://console.anthropic.com/account/keys) or [Gemini](https://aistudio.google.com/app/apikey) API keys.
+- `Name`: Give the configuration any friendly name like `OpenAI`, `Gemini`, `Anthropic`.
+- `Api base url`: Set the API base URL. This is only relevant to set if you're using another OpenAI-compatible proxy server like [Ollama](/advanced/ollama) or [LMStudio](/advanced/lmstudio).
+  ![example configuration for openai processor](/img/example_openai_processor_config.png)
+
+### Search Model Configs
+Search models are used to generate vector embeddings of your documents for natural language search and chat. You can choose any [embeddings models on HuggingFace](https://huggingface.co/models?pipeline_tag=sentence-similarity) to try, use for your to create vector embeddings of your documents for natural language search and chat.
+
+<img src="/img/example_search_model_admin_settings.png" alt="Example Search Model Settings" style={{width: 500}} />
+
+### Text to Image Model Options
+Add text to image generation models with these settings. Khoj currently supports text to image models available via OpenAI, Stability or Replicate API
+- `api-key`: Set to your OpenAI, Stability or Replicate API key
+- `model`: Set the model name available over the selected model provider
+- `model-type`: Set to the appropiate model provider
+- `openai-config`: For image generation models available via OpenAI (compatible) API you can set the appropriate OpenAI Processor Conversation Settings instead of specifying the `api-key` field above
+
+### Speech to Text Model Options
+Add speech to text models with these settings. Khoj currently only supports whisper speech to text model via OpenAI API or Offline
+
+### Voice Model Options
+Add text to speech models with these settings. Khoj currently supports models from [ElevenLabs](https://elevenlabs.io/).
+
+## User Data
+- Users, Entrys, Conversations, Subscriptions, Github configs, Notion configs, User search configs, User conversation configs, User voice configs
+
+## Miscellaneous Data
+- Process Locks: Persistent Locks for Automations
+- Client Applications:
+
+Client applications allow you to setup third party applications that can query your Khoj server using a client application ID + secret. The secret would go in a bearer token.