Refactor AI documentation structure and add model configuration guide

Reorganized the AI documentation to improve clarity and navigation. Converted numbered section headings to unnumbered format for better consistency with documentation standards. Added comprehensive guidance for configuring multiple models within a single endpoint, including a practical JSON configuration example for Anthropic endpoints that demonstrates how to set up model selection alongside the primary model setting.

* Documentation structure
* AI endpoint configuration guide

**Generated by CodeLite**

Signed-off-by: Eran Ifrah <eran@codelite.org>

Author: eranif

docs/docs/AI/ai.md

@@ -10,7 +10,9 @@ CodeLite 18.2.0 ships with a built-in chat interface that connects to any langua
 
 ---
 
-## 1. Add an LLM Endpoint
+## Add an LLM Endpoint
+
+### New Endpoint
 
 - Open **AI → Add New Endpoint** from the main menu.
 
@@ -23,9 +25,39 @@ CodeLite 18.2.0 ships with a built-in chat interface that connects to any langua
 
 - Test the endpoint: press ++ctrl+shift+h++ to open the chat box and send a short prompt (e.g., "Hello").
 
+### Configuring Multiple Models for a Single Endpoint
+
+Some endpoints support multiple models. For example, when working with Anthropic, you can choose between Haiku, Sonnet, or Opus. CodeLite allows you to configure multiple models for a single endpoint and quickly switch between them from the chat box UI.
+
+To add multiple models:
+
+- Open the AI settings file from the main menu bar: **AI** → **Open Setting File**
+- Locate the endpoint section you want to modify
+- If you do not already have a `models` entry, add one so it resembles the following:
+
+```json
+"https://api.anthropic.com": {
+  "active": true,
+  "context_size": 200000,
+  "http_headers": {
+    "x-api-key": "${ANTHROPIC_KEY}"
+  },
+  "max_tokens": 64000,
+  "model": "claude-sonnet-4-5",
+  "models": [
+    "claude-sonnet-4-5",
+    "claude-haiku-4-5",
+    "claude-opus-4-5"
+  ],
+  "type": "anthropic"
+},
+```
+
+- Save the file. The UI will update automatically.
+
 ---
 
-## 2. The Chat Box
+## The Chat Box
 
 Open the chat box at any time with ++ctrl+shift+h++. The window can be used for casual questions, code-related queries,
 or to instruct the model to perform tasks.
@@ -34,7 +66,7 @@ or to instruct the model to perform tasks.
 
 ---
 
-## 3. Built-in Model Tools
+## Built-in Model Tools
 
 CodeLite exposes the following built-in tools for the model:
 
@@ -102,7 +134,7 @@ The model will automatically call `ReadCompilerOutput`, fetch the log, and then
 
 ---
 
-## 4. External MCP Servers
+## External MCP Servers
 
 In addition to the built-in tools, CodeLite supports external MCP (Model Context Protocol) servers. You can integrate two types of external servers:
 
@@ -120,7 +152,7 @@ To add an external MCP server, navigate to the menu bar and select one of the fo
 
 ---
 
-## 5. Placeholders
+## Placeholders
 
 CodeLite provides a comprehensive set of placeholders that can be utilized within prompts. When you type `{{` in the chat box,
 a completion menu will appear displaying all available placeholders.
@@ -137,7 +169,7 @@ a completion menu will appear displaying all available placeholders.
 
 ---
 
-## 6. CodeLite Prompt Store
+## CodeLite Prompt Store
 
 ### Overview
 
@@ -156,7 +188,7 @@ These prompts can be used from the Chat-Box "Options" drop down menu.
 
 ---
 
-## 7. AI-Powered IDE Features
+## AI-Powered IDE Features
 
 ### Git Commit Message
 
@@ -172,7 +204,7 @@ Place the cursor inside a function, press ++ctrl+shift+m++, and the model writes
 
 ---
 
-## 8. Getting Help
+## Getting Help
 
 - Open the chat box (++ctrl+shift+h++) and ask any question or ask the model to perform tasks for you.
 - For endpoint-specific issues, use **AI → Settings** to view or edit the stored URLs and tokens.