Adding autocomplete and copilot suggestions

lua/codetyper/types.lua

@@ -7,18 +7,28 @@
 ---@field auto_gitignore boolean Auto-manage .gitignore
 
 ---@class LLMConfig
----@field provider "claude" | "ollama" The LLM provider to use
----@field claude ClaudeConfig Claude-specific configuration
+---@field provider "ollama" | "openai" | "gemini" | "copilot" The LLM provider to use
 ---@field ollama OllamaConfig Ollama-specific configuration
-
----@class ClaudeConfig
----@field api_key string | nil Claude API key (or env var ANTHROPIC_API_KEY)
----@field model string Claude model to use
+---@field openai OpenAIConfig OpenAI-specific configuration
+---@field gemini GeminiConfig Gemini-specific configuration
+---@field copilot CopilotConfig Copilot-specific configuration
 
 ---@class OllamaConfig
 ---@field host string Ollama host URL
 ---@field model string Ollama model to use
 
+---@class OpenAIConfig
+---@field api_key string | nil OpenAI API key (or env var OPENAI_API_KEY)
+---@field model string OpenAI model to use
+---@field endpoint string | nil Custom endpoint (Azure, OpenRouter, etc.)
+
+---@class GeminiConfig
+---@field api_key string | nil Gemini API key (or env var GEMINI_API_KEY)
+---@field model string Gemini model to use
+
+---@class CopilotConfig
+---@field model string Copilot model to use
+
 ---@class WindowConfig
 ---@field width number Width of the coder window (percentage or columns)
 ---@field position "left" | "right" Position of the coder window