fix(buffer): keep conceal active in all modes and add %l EOL forge labels

Problem: `concealcursor` was missing `i` and `v`, so concealed text
(task IDs, forge tokens) leaked in insert and visual modes. Forge
labels only rendered for the first span when multiple refs existed.

Solution: set `concealcursor = 'nicv'` to keep conceal in all modes.
Add `%l` EOL format specifier that renders all forge spans with
independent highlights. Update default `eol_format` to include `%l`.

doc/pending.txt

@@ -901,12 +901,13 @@ Fields: ~
                                     The view to use when the buffer is opened
                                     for the first time in a session.
 
-                         {eol_format}  (string, default: '%c  %r  %d')
+                         {eol_format}  (string, default: '%c  %r  %d  %l')
                                     Format string for end-of-line virtual text.
                                     Specifiers:
                                       `%c`  category icon + name (`PendingHeader`)
                                       `%r`  recurrence icon + pattern (`PendingRecur`)
                                       `%d`  due icon + date (`PendingDue`/`PendingOverdue`)
+                                      `%l`  forge link label (`PendingForge`/`PendingForgeClosed`)
                                     Literal text between specifiers acts as a
                                     separator. Absent fields and surrounding
                                     literals are collapsed automatically. `%c`
@@ -1572,10 +1573,9 @@ Example: >
 <
 
 On `:w`, the forge reference stays in the description and is also stored in
-the task's `_extra._forge_ref` field. The raw token is visually replaced
+the task's `_extra._forge_ref` field. The raw token is concealed in the
-inline with a formatted label using overlay extmarks (same technique as
+buffer and a formatted label appears at the end of the line via the `%l`
-checkbox icons). Multiple forge references in one line are each overlaid
+EOL format specifier.
-independently.
 
 Format string: ~
                                                     *pending-forge-format*

lua/pending/buffer.lua

@@ -183,14 +183,10 @@ local function apply_inline_row(bufnr, row, m, icons)
       invalidate = true,
     })
     if m.forge_spans then
-      local forge = require('pending.forge')
       for _, span in ipairs(m.forge_spans) do
-        local label_text, hl_group = forge.format_label(span.ref, span.cache)
         vim.api.nvim_buf_set_extmark(bufnr, ns_inline, row, span.col_start, {
           end_col = span.col_end,
           conceal = '',
-          virt_text = { { label_text, hl_group } },
-          virt_text_pos = 'inline',
           priority = 90,
           invalidate = true,
         })
@@ -215,7 +211,7 @@ end
 ---@param line string
 ---@return string?
 local function infer_status(line)
-  local ch = line:match('^/%d+/%- %[(.)%]') or line:match('^%- %[(.)%]')
+  local ch = line:match('^/%d+/%[(.)%]') or line:match('^%[(.)%]')
   if not ch then
     return nil
   end
@@ -399,7 +395,7 @@ end
 ---@param winid integer
 local function set_win_options(winid)
   vim.wo[winid].conceallevel = 3
-  vim.wo[winid].concealcursor = 'nc'
+  vim.wo[winid].concealcursor = 'nicv'
   vim.wo[winid].winfixheight = true
 end
 
@@ -411,7 +407,7 @@ local function setup_syntax(bufnr)
       syntax match taskId /^\/\d\+\// conceal
       syntax match taskHeader /^# .*$/ contains=taskId
       syntax match taskCheckbox /\[!\]/ contained containedin=taskLine
-      syntax match taskLine /^\/\d\+\/- \[.\] .*$/ contains=taskId,taskCheckbox
+      syntax match taskLine /^\/\d\+\/\[.\] .*$/ contains=taskId,taskCheckbox
     ]])
   end)
 end
@@ -429,7 +425,7 @@ function M.open_line(above)
 
   _rendering = true
   vim.bo[bufnr].modifiable = true
-  vim.api.nvim_buf_set_lines(bufnr, insert_row, insert_row, false, { '- [ ] ' })
+  vim.api.nvim_buf_set_lines(bufnr, insert_row, insert_row, false, { '[ ] ' })
   _rendering = false
 
   table.insert(_meta, meta_pos, { type = 'task' })
@@ -444,7 +440,7 @@ function M.open_line(above)
     end
   end
 
-  vim.api.nvim_win_set_cursor(0, { insert_row + 1, 6 })
+  vim.api.nvim_win_set_cursor(0, { insert_row + 1, 4 })
   vim.cmd('startinsert!')
 end
 
@@ -478,7 +474,7 @@ local function parse_eol_format(fmt)
   while pos <= len do
     if fmt:sub(pos, pos) == '%' and pos + 1 <= len then
       local key = fmt:sub(pos + 1, pos + 1)
-      if key == 'c' or key == 'r' or key == 'd' then
+      if key == 'c' or key == 'r' or key == 'd' or key == 'l' then
         table.insert(segments, { type = 'specifier', key = key })
         pos = pos + 2
       else
@@ -514,8 +510,21 @@ local function build_eol_virt(segments, m, icons)
       elseif seg.key == 'd' and m.due then
         text = icons.due .. ' ' .. m.due
         hl = due_hl
+      elseif seg.key == 'l' and m.forge_spans and #m.forge_spans > 0 then
+        local forge = require('pending.forge')
+        local parts = {}
+        for j, span in ipairs(m.forge_spans) do
+          local lt, lh = forge.format_label(span.ref, span.cache)
+          if j > 1 then
+            table.insert(parts, { text = ' ', hl = 'Normal' })
           end
+          table.insert(parts, { text = lt, hl = lh })
+        end
+        resolved[i] = { multi = parts, present = true }
+      end
+      if not resolved[i] then
         resolved[i] = text and { text = text, hl = hl, present = true } or { present = false }
+      end
     else
       resolved[i] = { text = seg.text, hl = 'Normal', literal = true }
     end
@@ -533,7 +542,13 @@ local function build_eol_virt(segments, m, icons)
         table.insert(virt_parts, pending_sep)
         pending_sep = nil
       end
+      if r.multi then
+        for _, part in ipairs(r.multi) do
+          table.insert(virt_parts, { part.text, part.hl })
+        end
+      else
         table.insert(virt_parts, { r.text, r.hl })
+      end
     else
       pending_sep = nil
     end

lua/pending/config.lua

@@ -131,7 +131,7 @@ local defaults = {
   max_priority = 3,
   view = {
     default = 'category',
-    eol_format = '%c  %r  %d',
+    eol_format = '%c  %r  %d  %l',
     category = {
       order = {},
       folding = true,