refactor: clean up unnecessary mini.files handling in selection.lua

- Remove complex mini.files detection logic from selection module
- Remove range-based selection function (not needed)
- Remove unnecessary test file
- Keep only essential path extraction fixes in get_visual_selection, get_cursor_position, get_range_selection

The existing command handler already properly uses integrations.get_selected_files_from_tree()
first, so we don't need duplicate logic in the selection module.

Author: jdurand

lua/claudecode/integrations.lua

@@ -268,41 +268,6 @@ end
 --- Reference: mini.files API MiniFiles.get_fs_entry()
 --- @return table files List of file paths
 --- @return string|nil error Error message if operation failed
--- Helper function to get mini.files selection using explicit range
-function M._get_mini_files_selection_with_range(start_line, end_line)
-  local success, mini_files = pcall(require, "mini.files")
-  if not success then
-    return {}, "mini.files not available"
-  end
-
-  local files = {}
-  local bufnr = vim.api.nvim_get_current_buf()
-  
-  -- Process each line in the range
-  for line = start_line, end_line do
-    local entry_ok, entry = pcall(mini_files.get_fs_entry, bufnr, line)
-    
-    if entry_ok and entry and entry.path and entry.path ~= "" then
-      -- Extract real filesystem path from mini.files buffer path
-      local real_path = entry.path
-      -- Remove mini.files buffer protocol prefix if present
-      if real_path:match("^minifiles://") then
-        real_path = real_path:gsub("^minifiles://[^/]*/", "")
-      end
-
-      -- Validate that the path exists
-      if vim.fn.filereadable(real_path) == 1 or vim.fn.isdirectory(real_path) == 1 then
-        table.insert(files, real_path)
-      end
-    end
-  end
-  
-  if #files > 0 then
-    return files, nil
-  else
-    return {}, "No file found under cursor"
-  end
-end
 
 function M._get_mini_files_selection()
   local success, mini_files = pcall(require, "mini.files")

lua/claudecode/selection.lua

@@ -659,81 +659,6 @@ function M.send_at_mention_for_visual_selection(line1, line2)
     return false
   end
 
-  -- Special handling for mini.files: use integrations module instead of selection system
-  local current_ft = vim.bo.filetype
-  local current_buf_name = vim.api.nvim_buf_get_name(vim.api.nvim_get_current_buf())
-  
-  if current_ft == "minifiles" or current_buf_name:match("^minifiles://") then
-    local integrations = require("claudecode.integrations")
-    local files, err
-    
-    if line1 and line2 then
-      -- Range-based selection, get files directly using the range
-      files, err = integrations._get_mini_files_selection_with_range(line1, line2)
-    else
-      -- No range provided, try to get last visual selection range 
-      local last_visual_start = vim.fn.line("'<")
-      local last_visual_end = vim.fn.line("'>")
-      
-      if last_visual_start > 0 and last_visual_end > 0 and last_visual_start <= last_visual_end then
-        files, err = integrations._get_mini_files_selection_with_range(last_visual_start, last_visual_end)
-      else
-        -- Fall back to current mode detection
-        files, err = integrations.get_selected_files_from_tree()
-      end
-    end
-    
-    if err then
-      logger.error("selection", "Failed to get mini.files selection: " .. err)
-      return false
-    end
-    
-    if not files or #files == 0 then
-      logger.warn("selection", "No files selected in mini.files.")
-      return false
-    end
-    
-    -- Send files sequentially with proper delays
-    local success_count = 0
-    local total_count = #files
-    
-    local function send_next_file(index)
-      if index > total_count then
-        -- All files processed, show summary
-        if success_count > 0 then
-          local message = success_count == 1 and "Added 1 file from mini.files"
-            or string.format("Added %d files from mini.files", success_count)
-          logger.info("selection", message)
-        else
-          logger.error("selection", "Failed to send any mini.files selections.")
-        end
-        return
-      end
-      
-      local file_path = files[index]
-      local success, error_msg = claudecode_main.send_at_mention(file_path, nil, nil, "ClaudeCodeSend")
-      if success then
-        success_count = success_count + 1
-        logger.debug("selection", "Sent mini.files selection: " .. file_path)
-      else
-        logger.error("selection", "Failed to send mini.files selection " .. file_path .. ": " .. (error_msg or "unknown error"))
-      end
-      
-      -- Send next file after a small delay
-      if index < total_count then
-        vim.defer_fn(function()
-          send_next_file(index + 1)
-        end, 200) -- 200ms delay between files
-      else
-        send_next_file(index + 1) -- Process final summary
-      end
-    end
-    
-    -- Start sending files
-    send_next_file(1)
-    return true -- Return immediately, files are sent asynchronously
-  end
-
   local sel_to_send
 
   -- If range parameters are provided, use them (for :'<,'> commands)