feat: phase 1 migration

lua/config/options.lua

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+-- [[ Setting options ]]
+-- See `:help vim.opt`
+-- See `:help vim.o`
+-- See `:help option-list`
+
+-- Set <space> as the leader key
+-- NOTE: Must happen before plugins are loaded (otherwise wrong leader will be used)
+vim.g.mapleader = ' '
+vim.g.maplocalleader = ' '
+
+-- Set to true if you have a Nerd Font installed and selected in the terminal
+vim.g.have_nerd_font = false
+
+-- [[ Setup Node.js PATH for plugins like Copilot ]]
+-- Add fnm's Node.js to PATH so Neovim can find it
+-- This is required for GitHub Copilot and other Node.js based plugins
+-- Uses fnm's alias resolution to always point to the default/latest version
+local home = vim.env.HOME
+local fnm_node_path = home .. '/.local/share/fnm/aliases/default/bin'
+-- Fallback: also add the fnm multishell path if it exists
+local fnm_multishell = home .. '/.local/state/fnm_multishells'
+if vim.fn.isdirectory(fnm_node_path) == 1 then
+  vim.env.PATH = fnm_node_path .. ':' .. vim.env.PATH
+elseif vim.fn.isdirectory(fnm_multishell) == 1 then
+  -- If multishell is being used, fnm will handle it via shell integration
+  -- We just need to ensure the PATH includes typical fnm locations
+  vim.env.PATH = home .. '/.local/share/fnm:' .. vim.env.PATH
+end
+
+-- Make line numbers default
+vim.o.number = true
+
+-- Enable relative line numbers for easier jumping
+vim.o.relativenumber = true
+
+-- Enable mouse mode, can be useful for resizing splits for example!
+vim.o.mouse = 'a'
+
+-- Don't show the mode, since it's already in the status line
+vim.o.showmode = false
+
+-- Sync clipboard between OS and Neovim.
+-- Schedule the setting after `UiEnter` because it can increase startup-time.
+-- See `:help 'clipboard'`
+vim.schedule(function()
+  vim.o.clipboard = 'unnamedplus'
+end)
+
+-- Enable break indent
+vim.o.breakindent = true
+
+-- Save undo history
+vim.o.undofile = true
+
+-- Case-insensitive searching UNLESS \C or one or more capital letters in the search term
+vim.o.ignorecase = true
+vim.o.smartcase = true
+
+-- Keep signcolumn on by default
+vim.o.signcolumn = 'yes'
+
+-- Decrease update time
+vim.o.updatetime = 250
+
+-- Decrease mapped sequence wait time
+-- Displays which-key popup sooner
+vim.o.timeoutlen = 300
+
+-- Configure how new splits should be opened
+vim.o.splitright = true
+vim.o.splitbelow = true
+
+-- Sets how neovim will display certain whitespace characters in the editor.
+-- See `:help 'list'` and `:help 'listchars'`
+vim.o.list = true
+vim.opt.listchars = { tab = '» ', trail = '·', nbsp = '␣' }
+
+-- Preview substitutions live, as you type!
+vim.o.inccommand = 'split'
+
+-- Show which line your cursor is on
+vim.o.cursorline = true
+
+-- Minimal number of screen lines to keep above and below the cursor.
+vim.o.scrolloff = 10
+
+-- If performing an operation that would fail due to unsaved changes in the buffer (like `:q`),
+-- instead raise a dialog asking if you wish to save the current file(s)
+-- See `:help 'confirm'`
+vim.o.confirm = true
+
+-- ========================================================================
+-- FOLDING CONFIGURATION - For Flutter widgets and code blocks
+-- ========================================================================
+-- Enable folding based on Treesitter (for Flutter widgets, functions, etc.)
+vim.o.foldmethod = 'expr'
+vim.o.foldexpr = 'nvim_treesitter#foldexpr()'
+
+-- Start with all folds open (don't fold on file open)
+vim.o.foldenable = false
+
+-- Set fold level (higher = more unfolded by default)
+vim.o.foldlevel = 99
+vim.o.foldlevelstart = 99
+
+-- Customize fold text to show more context
+vim.o.foldtext = ''
+
+-- Hide fold column globally (saves space, folds still work with za/zc/zo)
+-- Set to '1' if you want the fold column back
+vim.o.foldcolumn = '0'
+
+-- Folding keymaps:
+--   za - Toggle fold under cursor
+--   zc - Close fold under cursor
+--   zo - Open fold under cursor
+--   zM - Close all folds
+--   zR - Open all folds
+--   zj - Move to next fold
+--   zk - Move to previous fold