fix: use ${GITEA_TOKEN:-} to handle unset token

With set -u, expanding $GITEA_TOKEN fails if not set.
Changed to ${GITEA_TOKEN:-} to provide empty default.
This fixes the issue where cmd_start appears to succeed but agent never runs.

skills/kugetsu/scripts/kugetsu-config.sh

@@ -53,5 +53,9 @@ load_agent_env() {
         set -a
         source "$ENV_DIR/default.env"
         set +a
+    elif [ -f "$ENV_DIR/pm-agent.env" ]; then
+        set -a
+        source "$ENV_DIR/pm-agent.env"
+        set +a
     fi
 }

skills/kugetsu/scripts/kugetsu-queue-daemon.sh

@@ -109,7 +109,7 @@ process_task() {
 
     source "$SCRIPT_DIR/kugetsu-session.sh"
 
-    if worktree_exists "$issue_ref" "$HOME/.kugetsu-worktrees" || [ -f "$SESSIONS_DIR/$(issue_ref_to_filename "$issue_ref").json" ]; then
+    if worktree_exists "$issue_ref" "$WORKTREES_DIR" || [ -f "$SESSIONS_DIR/$(issue_ref_to_filename "$issue_ref").json" ]; then
         log_file="$LOGS_DIR/delegate-$(date +%s).log"
         if cmd_continue "$issue_ref" "$message" >> "$log_file" 2>&1; then
             sleep 1

skills/kugetsu/scripts/kugetsu-session.sh

@@ -194,8 +194,8 @@ cmd_delegate() {
     
     mkdir -p "$LOGS_DIR"
     local log_file="$LOGS_DIR/delegate-$(date +%s).log"
-    nohup sh -c "GITEA_TOKEN='***' opencode run '$message' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
+    load_agent_env "pm-agent"
-    disown
+    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --continue --session '$pm_session'" >> "$log_file" 2>&1 &
     echo "Delegated to PM agent (logged to $(basename "$log_file"))"
 }
 
@@ -313,7 +313,8 @@ cmd_start() {
     
     load_agent_env "dev"
     
-    (cd "$worktree_path" && nohup sh -c "GITEA_TOKEN='$GITEA_TOKEN' opencode run '$dev_message' --continue --session '$new_session_id'" >> "$LOGS_DIR/dev-$new_session_id.log" 2>&1 &) && disown
+    cd "$worktree_path"
+    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$dev_message' --continue --session '$new_session_id'" >> "$LOGS_DIR/dev-$new_session_id.log" 2>&1 &
     
     echo "Session started for '$issue_ref': $new_session_id"
     echo "Worktree: $worktree_path"
@@ -367,9 +368,10 @@ cmd_continue() {
     fi
     
     if [ -n "$worktree_path" ] && [ -d "$worktree_path" ]; then
-        (cd "$worktree_path" && nohup sh -c "GITEA_TOKEN='$GITEA_TOKEN' opencode run '$message' --continue --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$opencode_session_id.log" 2>&1 &) && disown
+        cd "$worktree_path"
+        nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --continue --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$opencode_session_id.log" 2>&1 &
     else
-        (nohup sh -c "GITEA_TOKEN='$GITEA_TOKEN' opencode run '$message' --continue --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$opencode_session_id.log" 2>&1 &) && disown
+        nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --continue --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$opencode_session_id.log" 2>&1 &
     fi
 }
 
@@ -521,7 +523,7 @@ cmd_destroy() {
     local target="${1:-}"
     local force=false
     
-    if [ "$2" = "-y" ]; then
+    if [ "${2:-}" = "-y" ]; then
         force=true
     fi