feat(completion): add zstyle verbose option for zsh completion

Add zstyle verbose option to customize Zsh completion display:
- `verbose=true` (default): show task descriptions
- `verbose=false`: show only task names

Usage:
  zstyle ':completion:*:*:task:*' verbose false

Author: vmaerten

completion/zsh/_task

@@ -41,12 +41,27 @@ function __task_list() {
     (( enabled )) || return 0
 
     scripts=()
+
+    # Read zstyle verbose option (default = true via -T)
+    local show_desc
+    zstyle -T ":completion:${curcontext}:" verbose && show_desc=true || show_desc=false
+
     for item in "${(@)${(f)output}[2,-1]#\* }"; do
         task="${item%%:[[:space:]]*}"
-        desc="${item##[^[:space:]]##[[:space:]]##}"
-        scripts+=( "${task//:/\\:}:$desc" )
+
+        if [[ "$show_desc" == "true" ]]; then
+            local desc="${item##[^[:space:]]##[[:space:]]##}"
+            scripts+=( "${task//:/\\:}:$desc" )
+        else
+            scripts+=( "$task" )
+        fi
     done
-    _describe 'Task to run' scripts
+
+    if [[ "$show_desc" == "true" ]]; then
+        _describe 'Task to run' scripts
+    else
+        compadd -Q -a scripts
+    fi
 }
 
 _task() {

website/src/docs/installation.md

@@ -384,3 +384,13 @@ task --completion fish > ~/.config/fish/completions/task.fish
 ```
 
 :::
+
+### Zsh customization
+
+The Zsh completion supports the standard `verbose` zstyle to control whether task
+descriptions are shown. By default, descriptions are displayed. To show only task
+names without descriptions, add this to your `~/.zshrc` (after the completion is loaded):
+
+```shell
+zstyle ':completion:*:*:task:*' verbose false
+```