ux and editing plugins configured

lua/plugins/autopairs.lua

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+-- Phase 6.5: nvim-autopairs for auto-closing brackets, quotes, etc.
+return {
+  'windwp/nvim-autopairs',
+  event = 'InsertEnter',
+  config = function()
+    local autopairs = require('nvim-autopairs')
+    
+    autopairs.setup({
+      check_ts = true,                        -- Use treesitter to check for valid pair
+      ts_config = {
+        lua = { 'string' },                   -- Don't add pairs in lua string treesitter nodes
+        javascript = { 'template_string' },   -- Don't add pairs in JS template strings
+        php = { 'string' },                   -- Don't add pairs in PHP strings
+      },
+      disable_filetype = { 'TelescopePrompt', 'vim' },
+      fast_wrap = {
+        map = '<M-e>',                        -- Alt+e for fast wrap
+        chars = { '{', '[', '(', '"', "'" },
+        pattern = [=[[%'%"%>%]%)%}%,]]=],
+        end_key = '$',
+        keys = 'qwertyuiopzxcvbnmasdfghjkl',
+        check_comma = true,
+        highlight = 'Search',
+        highlight_grey = 'Comment',
+      },
+    })
+
+    -- Integration with nvim-cmp
+    local cmp_autopairs = require('nvim-autopairs.completion.cmp')
+    local cmp = require('cmp')
+    cmp.event:on('confirm_done', cmp_autopairs.on_confirm_done())
+  end,
+}

lua/plugins/indent-blankline.lua

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+-- Phase 6.6: indent-blankline for visual indent guides
+return {
+  'lukas-reineke/indent-blankline.nvim',
+  main = 'ibl',
+  event = { 'BufReadPost', 'BufNewFile' },
+  opts = {
+    indent = {
+      char = '│',         -- Use same character as listchars tab
+      tab_char = '│',
+    },
+    scope = {
+      enabled = true,     -- Highlight current scope
+      show_start = true,  -- Show underline at start of scope
+      show_end = false,   -- Don't show underline at end (can be noisy)
+    },
+    exclude = {
+      filetypes = {
+        'help',
+        'alpha',
+        'dashboard',
+        'neo-tree',
+        'Trouble',
+        'lazy',
+        'mason',
+        'notify',
+        'toggleterm',
+        'lazyterm',
+      },
+      buftypes = {
+        'terminal',
+        'nofile',
+        'quickfix',
+        'prompt',
+      },
+    },
+  },
+}

lua/plugins/surround.lua

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+-- Phase 6.4: nvim-surround for surrounding text with quotes, brackets, tags, etc.
+return {
+  'kylechui/nvim-surround',
+  version = '*', -- Use stable releases
+  event = 'VeryLazy',
+  opts = {
+    -- Default keymaps:
+    -- ys{motion}{char} - Add surround in normal mode (e.g., ysiw" to surround word with quotes)
+    -- ds{char}         - Delete surround (e.g., ds" to delete surrounding quotes)
+    -- cs{old}{new}     - Change surround (e.g., cs"' to change " to ')
+    -- S{char}          - Add surround in visual mode (e.g., select text, S" to wrap in quotes)
+    
+    -- Keep default keymaps; minimal config
+    keymaps = {
+      insert = '<C-g>s',
+      insert_line = '<C-g>S',
+      normal = 'ys',
+      normal_cur = 'yss',
+      normal_line = 'yS',
+      normal_cur_line = 'ySS',
+      visual = 'S',
+      visual_line = 'gS',
+      delete = 'ds',
+      change = 'cs',
+      change_line = 'cS',
+    },
+  },
+}

lua/plugins/ufo.lua

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+-- Phase 6.7: nvim-ufo for better folding with Treesitter and LSP support
+return {
+  'kevinhwang91/nvim-ufo',
+  dependencies = {
+    'kevinhwang91/promise-async',
+  },
+  event = { 'BufReadPost', 'BufNewFile' },
+  keys = {
+    { 'zR', function() require('ufo').openAllFolds() end, desc = 'Open all folds' },
+    { 'zM', function() require('ufo').closeAllFolds() end, desc = 'Close all folds' },
+    { 'zr', function() require('ufo').openFoldsExceptKinds() end, desc = 'Open folds except kinds' },
+    { 'zm', function() require('ufo').closeFoldsWith() end, desc = 'Close folds with' },
+    { 'K', function()
+      local winid = require('ufo').peekFoldedLinesUnderCursor()
+      if not winid then
+        -- Fall back to LSP hover if not on a fold
+        vim.lsp.buf.hover()
+      end
+    end, desc = 'Peek fold or LSP hover' },
+  },
+  opts = {
+    provider_selector = function(bufnr, filetype, buftype)
+      -- Use Treesitter for supported languages, LSP for others, indent as fallback
+      return { 'treesitter', 'indent' }
+    end,
+    -- Open folds when searching
+    open_fold_hl_timeout = 150,
+    close_fold_kinds_for_ft = {
+      default = { 'imports', 'comment' },
+    },
+    preview = {
+      win_config = {
+        border = { '', '─', '', '', '', '─', '', '' },
+        winhighlight = 'Normal:Folded',
+        winblend = 0,
+      },
+      mappings = {
+        scrollU = '<C-u>',
+        scrollD = '<C-d>',
+        jumpTop = '[',
+        jumpBot = ']',
+      },
+    },
+  },
+  config = function(_, opts)
+    -- Set fold settings for nvim-ufo
+    vim.o.foldcolumn = '1'      -- Show fold column
+    vim.o.foldlevel = 99        -- Open all folds by default
+    vim.o.foldlevelstart = 99   -- Open all folds when opening a file
+    vim.o.foldenable = true     -- Enable folding
+    -- Use simple characters for fold indicators
+    vim.o.fillchars = [[eob: ,fold: ,foldopen:▼,foldsep: ,foldclose:▶]]
+
+    require('ufo').setup(opts)
+  end,
+}

lua/plugins/undotree.lua

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+-- Phase 6.8: undotree for visual undo history
+return {
+  'mbbill/undotree',
+  cmd = 'UndotreeToggle',  -- Lazy load on command
+  keys = {
+    { '<leader>u', '<cmd>UndotreeToggle<cr>', desc = 'Toggle Undotree' },
+  },
+  config = function()
+    -- Configure undotree
+    vim.g.undotree_WindowLayout = 2         -- Layout: diff at bottom
+    vim.g.undotree_ShortIndicators = 1      -- Use short time indicators
+    vim.g.undotree_SetFocusWhenToggle = 1   -- Focus undotree when toggled
+    vim.g.undotree_DiffAutoOpen = 1         -- Auto open diff window
+  end,
+}