feat(mcp): first version of MCP client

lua/codecompanion/config.lua

@@ -482,6 +482,9 @@ If you are providing code changes, use the insert_edit_into_file tool (if availa
           },
         },
       },
+      mcp = {
+        servers = {},
+      },
       keymaps = {
         options = {
           modes = { n = "?" },

lua/codecompanion/interactions/chat/init.lua

@@ -527,6 +527,8 @@ function Chat.new(args)
 
   self:update_metadata()
 
+  require("codecompanion.interactions.chat.mcp").start_servers()
+
   -- Likely this hasn't been set by the time the user opens the chat buffer
   if not _G.codecompanion_current_context then
     _G.codecompanion_current_context = self.buffer_context.bufnr