Add sqlit.nvim plugin for Neovim integration

Author: Maxteabag

extras/nvim/README.md

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+# sqlit.nvim
+
+Neovim integration for [sqlit](https://github.com/Maxteabag/sqlit).
+
+## Install
+
+Requires sqlit in your PATH.
+
+### lazy.nvim
+
+```lua
+{
+  "Maxteabag/sqlit",
+  subdir = "extras/nvim",
+  opts = {},
+}
+```
+
+### With options
+
+```lua
+{
+  "Maxteabag/sqlit",
+  subdir = "extras/nvim",
+  opts = {
+    theme = "dracula",
+    keymap = "<leader>D",
+    args = "",
+  },
+}
+```
+
+## Usage
+
+`<leader>D` or `:Sqlit`
+
+## Options
+
+| Option | Default | Description |
+|--------|---------|-------------|
+| `theme` | `"textual-ansi"` | sqlit theme (`nil` for default) |
+| `keymap` | `"<leader>D"` | Keymap to open (`false` to disable) |
+| `args` | `""` | Extra CLI arguments |

extras/nvim/lua/sqlit/init.lua

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+local M = {}
+
+M.config = {
+  theme = "textual-ansi",
+  keymap = "<leader>D",
+  desc = "Database (sqlit)",
+  args = "",
+}
+
+local function build_cmd()
+  local cmd = "sqlit"
+  if M.config.theme then
+    cmd = cmd .. " --theme " .. M.config.theme
+  end
+  if M.config.args and M.config.args ~= "" then
+    cmd = cmd .. " " .. M.config.args
+  end
+  return cmd
+end
+
+function M.open()
+  local cmd = build_cmd()
+
+  local ok, snacks = pcall(require, "snacks")
+  if ok and snacks.terminal then
+    snacks.terminal(cmd)
+    return
+  end
+
+  local tok, toggleterm = pcall(require, "toggleterm.terminal")
+  if tok then
+    local Terminal = toggleterm.Terminal
+    local sqlit = Terminal:new({
+      cmd = cmd,
+      direction = "float",
+      hidden = true,
+      on_open = function()
+        vim.cmd("startinsert!")
+      end,
+    })
+    sqlit:toggle()
+    return
+  end
+
+  vim.cmd("tabnew | terminal " .. cmd)
+  vim.cmd("startinsert")
+end
+
+function M.setup(opts)
+  M.config = vim.tbl_deep_extend("force", M.config, opts or {})
+
+  if M.config.keymap then
+    vim.keymap.set("n", M.config.keymap, function()
+      M.open()
+    end, { desc = M.config.desc })
+  end
+end
+
+return M

extras/nvim/plugin/sqlit.lua

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+vim.api.nvim_create_user_command("Sqlit", function()
+  require("sqlit").open()
+end, { desc = "Open sqlit" })