feat(privesc): migrate from opendoas to sudo-rs

doas's one-shot password and absent 'sudo -v' kept wasting hour-long
paru AUR builds. sudo-rs is a memory-safe Rust rewrite (ISRG/Ferrous
Systems), drop-in CLI compatible, and the same one Ubuntu 25.10 ships
as default. We follow the Arch wiki 'Using sudo-rs without the sudo
package' recipe verbatim — no custom shims.

- meta/base.txt: -doas-sudo-shim +sudo-rs
- etc/sudoers-rs (mode 0440): wiki minimal config + NOPASSWD reboot/poweroff
- etc/pam.d/sudo: 4-line copy of upstream sudo's PAM file
- run_onchange_after_deploy-etc.sh.tmpl: use real sudo, deploy sudoers-rs
  at 0440, create /etc/pam.d/sudo-i and /usr/local/bin/{sudo,sudoedit,
  su,visudo} → sudo-rs symlinks idempotently
- delete etc/doas.conf, dot_local/bin/{doasedit,sudo}
- zshrc: drop sudo=doas/sudoedit=doasedit aliases; rewrite ss/gimme/
  pacdiff/ssys to call sudo
- justfile: s/doas/sudo/g (status/diff/restore helpers)
- nvim: rename :DoasWrite → :SudoWrite (uses sudo -S)
- sway config: reboot/poweroff buttons call sudo
- bootstrap.sh: update step-5 comment
- README/KEYBINDS/copilot-instructions: flip the privesc convention

No Defaults overrides: sudo's defaults (passwd_tries=3,
timestamp_timeout=5) already fix the doas pain, and paru SudoLoop
(kept) refreshes the 5-min window via real sudo -v.

1 files changed, 6 insertions, 6 deletions

diff --git a/dot_config/nvim/lua/config/keymaps.lua b/dot_config/nvim/lua/config/keymaps.lua
index a0dc19e..b3362a3 100644
--- a/dot_config/nvim/lua/config/keymaps.lua
+++ b/dot_config/nvim/lua/config/keymaps.lua
@@ -78,15 +78,15 @@ nmap("yp", function()
   vim.fn.setreg("+", vim.fn.expand("%"))
 end, "[Y]ank [P]ath")
 
-local doas_exec = function(_cmd)
+local sudo_exec = function(_cmd)
   vim.fn.inputsave()
   local password = vim.fn.inputsecret("Password: ")
   vim.fn.inputrestore()
   if not password or #password == 0 then
-    vim.notify("Invalid password, doas aborted", vim.log.levels.WARN)
+    vim.notify("Invalid password, sudo aborted", vim.log.levels.WARN)
     return false
   end
-  local out = vim.fn.system(string.format("doas -S %s", _cmd), password .. "\n")
+  local out = vim.fn.system(string.format("sudo -S %s", _cmd), password .. "\n")
   if vim.v.shell_error ~= 0 then
     print("\r\n")
     vim.notify(out, vim.log.levels.ERROR)
@@ -95,7 +95,7 @@ local doas_exec = function(_cmd)
   return true
 end
 
-vim.api.nvim_create_user_command("DoasWrite", function(opts)
+vim.api.nvim_create_user_command("SudoWrite", function(opts)
   local tmpfile = vim.fn.tempname()
   local filepath
   if #opts.fargs == 1 then
@@ -116,7 +116,7 @@ vim.api.nvim_create_user_command("DoasWrite", function(opts)
   )
   -- no need to check error as this fails the entire function
   vim.api.nvim_exec2(string.format("write! %s", tmpfile), { output = true })
-  if doas_exec(_cmd) then
+  if sudo_exec(_cmd) then
     -- refreshes the buffer and prints the "written" message
     vim.cmd.checktime()
     -- exit command mode
@@ -129,5 +129,5 @@ vim.api.nvim_create_user_command("DoasWrite", function(opts)
   vim.fn.delete(tmpfile)
 end, {
   nargs = "?",
-  desc = "Write using doas permissions",
+  desc = "Write using sudo permissions",
 })