fix(kugetsu): cmd_delegate should enqueue instead of calling cmd_start

When cmd_delegate detects an issue ref with number (e.g. git.fbrns.co/shoko/kugetsu#158),
it was calling cmd_start directly which tries to create worktree and clone.
This breaks the queue-based workflow where daemon should handle task execution.

Now cmd_delegate calls enqueue_task to add to queue, and daemon processes
tasks by calling cmd_start/cmd_continue as appropriate.

skills/kugetsu/scripts/kugetsu-session.sh

@@ -153,10 +153,12 @@ cmd_delegate() {
     local issue_ref=$(extract_issue_ref_from_message "$message")
     
     if [ -n "$issue_ref" ] && [[ "$issue_ref" =~ \#[0-9]+$ ]]; then
-        cmd_start "$issue_ref" "$message"
+        # Enqueue for daemon to process via cmd_start/cmd_continue
+        enqueue_task "$issue_ref" "$message"
         return
     fi
     
+    # No issue ref detected — delegate directly to PM agent (legacy path)
     local pm_session=$(get_pm_agent_session_id)
     if [ -z "$pm_session" ] || [ "$pm_session" = "null" ] || [ "$pm_session" = "None" ]; then
         echo "Error: PM agent session not found. Run 'kugetsu init' first." >&2
@@ -165,7 +167,7 @@ cmd_delegate() {
     
     mkdir -p "$LOGS_DIR"
     local log_file="$LOGS_DIR/delegate-$(date +%s).log"
-    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
+    nohup sh -c "GITEA_TOKEN='***' opencode run '$message' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
     disown
     echo "Delegated to PM agent (logged to $(basename "$log_file"))"
 }