feat: add <C-a> / <C-x> keymaps for priority increment/decrement (#114)

* feat(s3): create bucket interactively during auth when unconfigured

Problem: when a user runs `:Pending s3 auth` with no bucket configured,
auth succeeds but offers no way to create the bucket. The user must
manually run `aws s3api create-bucket` and update their config.

Solution: add `util.input()` coroutine-aware prompt wrapper and a
`create_bucket()` flow in `s3.lua` that prompts for bucket name and
region, handles the `us-east-1` LocationConstraint quirk, and logs a
config snippet on success. Called automatically from `auth()` when
`sync.s3.bucket` is absent.

* ci: typing

* feat(parse): add `parse_duration_to_days` for duration string conversion

Problem: The archive command accepted only a bare integer for days,
inconsistent with the `+Nd`/`+Nw`/`+Nm` duration syntax used elsewhere.

Solution: Add `parse_duration_to_days()` supporting `Nd`, `Nw`, `Nm`,
and bare integers. Returns nil on invalid input for caller error handling.

* feat(archive): duration syntax and confirmation prompt

Problem: `:Pending archive` accepted only a bare integer for days and
silently deleted tasks with no confirmation, risking accidental data loss.

Solution: Accept duration strings (`7d`, `3w`, `2m`) via
`parse.parse_duration_to_days()`, show a `vim.ui.input` confirmation
prompt before removing tasks, and skip the prompt when zero tasks match.

* feat: add `<C-a>` / `<C-x>` keymaps for priority increment/decrement

Problem: Priority could only be cycled with `g!` (0→1→2→3→0), with no
way to directly increment or decrement.

Solution: Add `adjust_priority()` with clamping at 0 and `max_priority`,
exposed as `increment_priority()` / `decrement_priority()` on `<C-a>` /
`<C-x>`. Includes `<Plug>` mappings and vimdoc.

* fix(s3): use parenthetical defaults in bucket creation prompts

Problem: `util.input` with `default` pre-filled the input field, and
the success message said "Add to your config" ambiguously.

Solution: Show defaults in prompt text as `(default)` instead of
pre-filling, and clarify the message to "Add to your pending.nvim
config".

* ci: format

doc/pending.txt

@@ -299,6 +299,8 @@ Default buffer-local keys: ~
     `gz`          Undo the last `:w` save (`undo`)
     `o`           Insert a new task line below (`open_line`)
     `O`           Insert a new task line above (`open_line_above`)
+    `<C-a>`       Increment priority (clamped at `max_priority`) (`priority_up`)
+    `<C-x>`       Decrement priority (clamped at 0) (`priority_down`)
     `J`           Move task down within its category (`move_down`)
     `K`           Move task up within its category (`move_up`)
     `zc`          Fold the current category section (requires `folding`)
@@ -413,6 +415,16 @@ old keys to `false`: >lua
     Toggle blocked status for the task under the cursor.
     If the task is already `blocked`, reverts to `pending`.
 
+                                                *<Plug>(pending-priority-up)*
+<Plug>(pending-priority-up)
+    Increment the priority level for the task under the cursor, clamped
+    at `max_priority`. Default key: `<C-a>`.
+
+                                              *<Plug>(pending-priority-down)*
+<Plug>(pending-priority-down)
+    Decrement the priority level for the task under the cursor, clamped
+    at 0. Default key: `<C-x>`.
+
                                                    *<Plug>(pending-open-line)*
 <Plug>(pending-open-line)
     Insert a correctly-formatted blank task line below the cursor.

lua/pending/config.lua

@@ -137,6 +137,8 @@ local defaults = {
     move_up = 'K',
     wip = 'gw',
     blocked = 'gb',
+    priority_up = '<C-a>',
+    priority_down = '<C-x>',
   },
   sync = {},
   icons = {

lua/pending/init.lua

@@ -363,6 +363,12 @@ function M._setup_buf_mappings(bufnr)
     blocked = function()
       M.toggle_status('blocked')
     end,
+    priority_up = function()
+      M.increment_priority()
+    end,
+    priority_down = function()
+      M.decrement_priority()
+    end,
     undo = function()
       M.undo_write()
     end,
@@ -646,6 +652,56 @@ function M.toggle_priority()
   end
 end
 
+---@param delta integer
+---@return nil
+local function adjust_priority(delta)
+  local bufnr = buffer.bufnr()
+  if not bufnr then
+    return
+  end
+  if not require_saved() then
+    return
+  end
+  local row = vim.api.nvim_win_get_cursor(0)[1]
+  local meta = buffer.meta()
+  if not meta[row] or meta[row].type ~= 'task' then
+    return
+  end
+  local id = meta[row].id
+  if not id then
+    return
+  end
+  local s = get_store()
+  local task = s:get(id)
+  if not task then
+    return
+  end
+  local max = require('pending.config').get().max_priority or 3
+  local new_priority = math.max(0, math.min(max, task.priority + delta))
+  if new_priority == task.priority then
+    return
+  end
+  s:update(id, { priority = new_priority })
+  _save_and_notify()
+  buffer.render(bufnr)
+  for lnum, m in ipairs(buffer.meta()) do
+    if m.id == id then
+      vim.api.nvim_win_set_cursor(0, { lnum, 0 })
+      break
+    end
+  end
+end
+
+---@return nil
+function M.increment_priority()
+  adjust_priority(1)
+end
+
+---@return nil
+function M.decrement_priority()
+  adjust_priority(-1)
+end
+
 ---@return nil
 function M.prompt_date()
   local bufnr = buffer.bufnr()
@@ -1032,7 +1088,13 @@ function M.archive(arg)
     return
   end
   confirm(
-    'Archive ' .. count .. ' task' .. (count == 1 and '' or 's') .. ' completed/deleted more than ' .. days .. 'd ago?',
+    'Archive '
+      .. count
+      .. ' task'
+      .. (count == 1 and '' or 's')
+      .. ' completed/deleted more than '
+      .. days
+      .. 'd ago?',
     function()
       local kept = {}
       for _, task in ipairs(tasks) do

lua/pending/parse.lua

@@ -679,11 +679,13 @@ function M.parse_duration_to_days(s)
   end
   n = s:match('^(%d+)w$')
   if n then
-    return tonumber(n) --[[@as integer]] * 7
+    return tonumber(n) --[[@as integer]]
+      * 7
   end
   n = s:match('^(%d+)m$')
   if n then
-    return tonumber(n) --[[@as integer]] * 30
+    return tonumber(n) --[[@as integer]]
+      * 30
   end
   n = s:match('^(%d+)$')
   if n then

lua/pending/sync/s3.lua

@@ -67,11 +67,14 @@ local function ensure_sync_id(task)
 end
 
 local function create_bucket()
-  local name = util.input({ prompt = 'S3 bucket name: ', default = 'pending.nvim' })
+  local name = util.input({ prompt = 'S3 bucket name (pending.nvim): ' })
-  if not name or name == '' then
+  if not name then
     log.info('s3: bucket creation cancelled')
     return
   end
+  if name == '' then
+    name = 'pending.nvim'
+  end
 
   local region_cmd = base_cmd()
   vim.list_extend(region_cmd, { 'configure', 'get', 'region' })
@@ -84,9 +87,11 @@ local function create_bucket()
     end
   end
 
-  local region = util.input({ prompt = 'AWS region: ', default = default_region })
+  local region = util.input({ prompt = 'AWS region (' .. default_region .. '): ' })
-  if not region or region == '' then
+  if not region then
-    region = 'us-east-1'
+    region = default_region
+  elseif region == '' then
+    region = default_region
   end
 
   local cmd = base_cmd()
@@ -98,7 +103,7 @@ local function create_bucket()
   local result = util.system(cmd, { text = true })
   if result.code == 0 then
     log.info(
-      's3: bucket created. Add to your config:\n  sync = { s3 = { bucket = "'
+      's3: bucket created. Add to your pending.nvim config:\n  sync = { s3 = { bucket = "'
         .. name
         .. '", region = "'
         .. region

plugin/pending.lua

@@ -328,6 +328,14 @@ vim.keymap.set('n', '<Plug>(pending-blocked)', function()
   require('pending').toggle_status('blocked')
 end)
 
+vim.keymap.set('n', '<Plug>(pending-priority-up)', function()
+  require('pending').increment_priority()
+end)
+
+vim.keymap.set('n', '<Plug>(pending-priority-down)', function()
+  require('pending').decrement_priority()
+end)
+
 vim.keymap.set('n', '<Plug>(pending-filter)', function()
   vim.ui.input({ prompt = 'Filter: ' }, function(input)
     if input then

spec/s3_spec.lua

@@ -179,7 +179,7 @@ describe('s3', function()
         if opts.prompt:find('bucket') then
           return 'my-bucket'
         end
-        return opts.default
+        return ''
       end
       local create_args
       util.system = function(args)
@@ -212,12 +212,12 @@ describe('s3', function()
       assert.truthy(msg and msg:find('bucket created'))
     end)
 
-    it('cancels when user provides empty bucket name', function()
+    it('cancels when user provides nil bucket name', function()
       util.input = function(opts)
         if opts.prompt:find('bucket') then
           return nil
         end
-        return opts.default
+        return ''
       end
       util.system = function(args)
         if vim.tbl_contains(args, 'get-caller-identity') then
@@ -247,7 +247,7 @@ describe('s3', function()
         if opts.prompt:find('region') then
           return 'us-east-1'
         end
-        return opts.default
+        return ''
       end
       local create_args
       util.system = function(args)
@@ -281,7 +281,7 @@ describe('s3', function()
         if opts.prompt:find('region') then
           return 'eu-west-1'
         end
-        return opts.default
+        return ''
       end
       local create_args
       util.system = function(args)
@@ -311,7 +311,7 @@ describe('s3', function()
         if opts.prompt:find('bucket') then
           return 'bad-bucket'
         end
-        return opts.default
+        return ''
       end
       util.system = function(args)
         if vim.tbl_contains(args, 'get-caller-identity') then