Migrate to chezmoi with per-host sway/waybar configs

- Restructure repo into chezmoi source layout (dot_ prefix)
- Add .chezmoi.toml.tmpl mapping hostname to hosttype (laptop/desktop)
- Template sway config.d fragments (outputs/inputs/binds) per host
- Template waybar config.jsonc with shared bar/module definitions
- Host-scope pulsemeeter (flow) and teams-for-linux (desktop hosts) via .chezmoiignore
- Trim install.sh package lists to configured software + config deps
- Remove stale kitty.conf.bak and untracked host fragments

dot_config/nvim/lsp/lua_ls.lua

@@ -0,0 +1,15 @@
+return {
+  cmd = { "lua-language-server" },
+  filetypes = { "lua" },
+  root_markers = {
+    ".luarc.json", ".luarc.jsonc", ".luacheckrc",
+    ".stylua.toml", "stylua.toml", "selene.toml",
+    "selene.yml", ".git"
+  },
+  settings = {
+    Lua = {
+      runtime = { version = "LuaJIT" }, -- Neovim uses LuaJIT
+      diagnostics = { globals = { "vim" } }, -- Recognize 'vim' global
+    },
+  },
+}