nvim,tmux,kitty: full config overhaul (AstroNvim → native 0.12)

Replaces AstroNvim v5 with from-scratch Neovim 0.12 config using
vim.lsp.config()/vim.lsp.enable() natively, lazy.nvim, blink.cmp,
and smart-splits tmux integration.

tmux: new C-Space prefix, hjkl pane nav, resize key table, tpm plugins.
kitty: add allow_remote_control for smart-splits.

dot_config/nvim/lua/plugins/dap/init.lua

@@ -0,0 +1,79 @@
+return {
+  -- Debug Adapter Protocol base
+  {
+    "mfussenegger/nvim-dap",
+    dependencies = {
+      "rcarriga/nvim-dap-ui",
+      "theHamsta/nvim-dap-virtual-text",
+      "nvim-neotest/nvim-nio",
+    },
+    keys = {
+      { "<leader>db", function() require("dap").toggle_breakpoint() end,                                         desc = "Toggle breakpoint"      },
+      { "<leader>dB", function() require("dap").set_breakpoint(vim.fn.input("Condition: ")) end,                 desc = "Conditional breakpoint" },
+      { "<leader>dc", function() require("dap").continue() end,                                                  desc = "Continue"               },
+      { "<leader>di", function() require("dap").step_into() end,                                                 desc = "Step into"              },
+      { "<leader>do", function() require("dap").step_over() end,                                                 desc = "Step over"              },
+      { "<leader>dO", function() require("dap").step_out() end,                                                  desc = "Step out"               },
+      { "<leader>dr", function() require("dap").repl.open() end,                                                 desc = "Open REPL"              },
+      { "<leader>du", function() require("dapui").toggle() end,                                                  desc = "Toggle DAP UI"          },
+      { "<leader>dv", function() require("nvim-dap-virtual-text").toggle() end,                                  desc = "Toggle virtual text"    },
+    },
+    config = function()
+      local dap = require("dap")
+      local dapui = require("dapui")
+
+      -- Auto-open/close DAP UI
+      dap.listeners.after.event_initialized["dapui_config"] = function() dapui.open() end
+      dap.listeners.before.event_terminated["dapui_config"] = function() dapui.close() end
+      dap.listeners.before.event_exited["dapui_config"]     = function() dapui.close() end
+
+      -- Load language-specific configs
+      require("plugins.dap.rust")
+      require("plugins.dap.js")
+    end,
+  },
+
+  -- DAP UI panels
+  {
+    "rcarriga/nvim-dap-ui",
+    lazy = true,
+    dependencies = { "mfussenegger/nvim-dap", "nvim-neotest/nvim-nio" },
+    opts = {
+      icons = { expanded = "", collapsed = "", current_frame = "" },
+      layouts = {
+        {
+          elements = {
+            { id = "scopes",      size = 0.25 },
+            { id = "breakpoints", size = 0.25 },
+            { id = "stacks",      size = 0.25 },
+            { id = "watches",     size = 0.25 },
+          },
+          size = 40,
+          position = "left",
+        },
+        {
+          elements = {
+            { id = "repl",    size = 0.5 },
+            { id = "console", size = 0.5 },
+          },
+          size = 10,
+          position = "bottom",
+        },
+      },
+    },
+  },
+
+  -- Inline variable values during debug session
+  {
+    "theHamsta/nvim-dap-virtual-text",
+    lazy = true,
+    opts = {
+      enabled = true,
+      enabled_commands = true,
+      highlight_changed_variables = true,
+      highlight_new_as_changed = false,
+      commented = false,
+      virt_text_pos = "eol",
+    },
+  },
+}

dot_config/nvim/lua/plugins/dap/js.lua

@@ -0,0 +1,41 @@
+local M = {}
+
+local function setup()
+  local dap = require("dap")
+  local mason_path = vim.fn.stdpath("data") .. "/mason/packages/js-debug-adapter"
+
+  dap.adapters["pwa-node"] = {
+    type = "server",
+    host = "localhost",
+    port = "${port}",
+    executable = {
+      command = "node",
+      args = { mason_path .. "/js-debug/src/dapDebugServer.js", "${port}" },
+    },
+  }
+
+  local js_config = {
+    {
+      type = "pwa-node",
+      request = "launch",
+      name = "Launch file",
+      program = "${file}",
+      cwd = "${workspaceFolder}",
+      sourceMaps = true,
+    },
+    {
+      type = "pwa-node",
+      request = "attach",
+      name = "Attach",
+      processId = require("dap.utils").pick_process,
+      cwd = "${workspaceFolder}",
+    },
+  }
+
+  for _, lang in ipairs({ "javascript", "typescript", "svelte" }) do
+    dap.configurations[lang] = js_config
+  end
+end
+
+setup()
+return M

dot_config/nvim/lua/plugins/dap/rust.lua

@@ -0,0 +1,43 @@
+local M = {}
+
+local function setup()
+  local dap = require("dap")
+  local mason_path = vim.fn.stdpath("data") .. "/mason/packages/codelldb"
+
+  dap.adapters.codelldb = {
+    type = "server",
+    port = "${port}",
+    executable = {
+      command = mason_path .. "/extension/adapter/codelldb",
+      args = { "--port", "${port}" },
+    },
+  }
+
+  dap.configurations.rust = {
+    {
+      name = "Launch (Rust)",
+      type = "codelldb",
+      request = "launch",
+      program = function()
+        return vim.fn.input("Path to executable: ", vim.fn.getcwd() .. "/target/debug/", "file")
+      end,
+      cwd = "${workspaceFolder}",
+      stopOnEntry = false,
+      args = {},
+    },
+    {
+      name = "Launch Tauri (Rust)",
+      type = "codelldb",
+      request = "launch",
+      program = function()
+        return vim.fn.input("Path to executable: ", vim.fn.getcwd() .. "/src-tauri/target/debug/", "file")
+      end,
+      cwd = "${workspaceFolder}/src-tauri",
+      stopOnEntry = false,
+      args = {},
+    },
+  }
+end
+
+setup()
+return M