fix: clear attr_toggle state after formatting

When :LspSCLFormat is used, line numbers and positions change,
but the attr_toggle module stores state based on old positions.
This caused toggle/expand/collapse to not work after formatting.

Now clears the attr_toggle buffer state after formatting so that
users can collapse blocks fresh after formatting.

lua/scl_lsp/init.lua

@@ -36,6 +36,11 @@ function M.setup(opts)
         if opts.lsp and opts.lsp.formatting then
           vim.api.nvim_buf_create_user_command(b, "LspSCLFormat", function()
             vim.lsp.buf.format({ name = "scl_lsp" })
+            -- Clear attr_toggle state since line positions may have changed
+            local ok, at = pcall(require, "scl.attr_toggle")
+            if ok then
+              at.clear_buffer_state(vim.api.nvim_get_current_buf())
+            end
           end, {})
         end
       end,
@@ -53,6 +58,11 @@ function M.setup(opts)
   -- Create global format command (works on current buffer)
   vim.api.nvim_create_user_command("LspSCLFormat", function()
     vim.lsp.buf.format({ name = "scl_lsp" })
+    -- Clear attr_toggle state since line positions may have changed
+    local ok, at = pcall(require, "scl.attr_toggle")
+    if ok then
+      at.clear_buffer_state(vim.api.nvim_get_current_buf())
+    end
   end, {})
   
   -- Start LSP for any existing scl buffers (handles lazy loading case)