fix: implement proper mini.files visual selection at-mention support

- Add special handling for mini.files in send_at_mention_for_visual_selection
- Use integrations module to get actual selected files instead of directory path
- Send each selected file as a separate at-mention
- Remove debug logging from init.lua

This fixes the issue where mini.files visual selections were sending the directory
instead of the individual selected files.

Author: jdurand

lua/claudecode/init.lua

@@ -1031,13 +1031,6 @@ function M._broadcast_at_mention(file_path, start_line, end_line)
     lineEnd = end_line,
   }
 
-  -- Debug logging to see what's being sent
-  logger.debug("command", "Sending at_mentioned with params:")
-  logger.debug("command", "  filePath: '" .. tostring(formatted_path) .. "'")
-  logger.debug("command", "  lineStart: " .. tostring(start_line))
-  logger.debug("command", "  lineEnd: " .. tostring(end_line))
-  logger.debug("command", "  is_directory: " .. tostring(is_directory))
-
   local broadcast_success = M.state.server.broadcast("at_mentioned", params)
   if broadcast_success then
     return true, nil

lua/claudecode/selection.lua

@@ -659,6 +659,43 @@ 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
+  if current_ft == "minifiles" then
+    local integrations = require("claudecode.integrations")
+    local files, err = integrations.get_selected_files_from_tree()
+    
+    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 each selected file as a separate at-mention
+    local success_count = 0
+    for _, file_path in ipairs(files) do
+      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
+    end
+    
+    if success_count > 0 then
+      logger.debug("selection", "Successfully sent " .. success_count .. " mini.files selections.")
+      return true
+    else
+      logger.error("selection", "Failed to send any mini.files selections.")
+      return false
+    end
+  end
+
   local sel_to_send
 
   -- If range parameters are provided, use them (for :'<,'> commands)