feat: implement interactable dap hover

lua/ow/dap/item.lua

@@ -0,0 +1,43 @@
+-- DAP variable item representation
+
+---@class ow.dap.Item
+---@field name string
+---@field type string
+---@field value string
+---@field variablesReference? number
+---@field depth integer
+local Item = {}
+Item.__index = Item
+
+---Create a new item
+---@param name string
+---@param type string
+---@param value string
+---@param variablesReference? number
+---@param depth integer
+---@return ow.dap.Item
+function Item.new(name, type, value, variablesReference, depth)
+    return setmetatable({
+        name = name,
+        type = type,
+        value = value,
+        variablesReference = variablesReference,
+        depth = depth,
+    }, Item)
+end
+
+---Create item from DAP variable
+---@param var dap.Variable
+---@param depth integer
+---@return ow.dap.Item
+function Item.from_var(var, depth)
+    return Item.new(
+        var.name,
+        var.type,
+        var.value,
+        var.variablesReference,
+        depth
+    )
+end
+
+return Item