fix(edit_file): consider empty end lines

Author: ravitemer

lua/mcphub/native/neovim/files/edit_file/block_locator.lua

@@ -28,7 +28,7 @@ end
 ---@param file_content string Content of the target file
 ---@return LocatedBlock[] located_blocks Blocks with location information
 function BlockLocator:locate_all_blocks(parsed_blocks, file_content)
-    local file_lines = vim.split(file_content, "\n", { plain = true, trimempty = true })
+    local file_lines = vim.split(file_content, "\n", { plain = true, trimempty = false })
     local located_blocks = {}
     for _, parsed_block in ipairs(parsed_blocks) do
         if vim.trim(parsed_block.search_content) == "" then

lua/mcphub/native/neovim/files/edit_file/edit_ui.lua

@@ -152,8 +152,8 @@ function EditUI:_generate_hunk_blocks()
         local location_result = located_block.location_result
         if location_result.found then
             precise_diff_hunks = vim.diff(
-                table.concat(location_result.found_lines, "\n"),
-                table.concat(located_block.replace_lines, "\n"),
+                table.concat(location_result.found_lines, "\n") .. "\n",
+                table.concat(located_block.replace_lines, "\n") .. "\n",
                 { result_type = "indices", algorithm = "histogram", ctxlen = 3 }
             ) or {} --[[@as table<integer, integer>]]
         end