fix(kugetsu): queue daemon runs PM agent in correct worktree with proper token

- Load GITEA_TOKEN from ~/.kugetsu/env/default.env at daemon startup
- Use --fork --session --dir instead of --continue to run in correct directory
- Create worktree if it doesn't exist for the issue
- Track forked session ID (not parent pm_session) for completion detection
- Forked session ends when task completes, parent pm_session continues

Fixes #156

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

@@ -8,7 +8,12 @@ source "$SCRIPT_DIR/kugetsu-index.sh"
 source "$SCRIPT_DIR/kugetsu-worktree.sh"
 source "$SCRIPT_DIR/kugetsu-log.sh"
 
-# Check if a notified task has completed (session ended or has new commits)
+# Load GITEA_TOKEN from default.env
+if [ -f "$HOME/.kugetsu/env/default.env" ]; then
+    source "$HOME/.kugetsu/env/default.env"
+fi
+
+# Check if a notified task has completed (forked session ended or has new commits)
 check_task_completion() {
     local item="$1"
     local queue_id=$(basename "$item" .json)
@@ -16,15 +21,16 @@ check_task_completion() {
     
     [ "$state" = "notified" ] || return 0
     
-    local session_id=$(python3 -c "import json; print(json.load(open('$item')).get('session_id', ''))" 2>/dev/null)
+    # Use opencode_session_id (the forked session, not the parent pm_session)
+    local session_id=$(python3 -c "import json; print(json.load(open('$item')).get('opencode_session_id', ''))" 2>/dev/null)
     local issue_ref=$(python3 -c "import json; print(json.load(open('$item')).get('issue_ref', ''))" 2>/dev/null)
     
     # If no session tracked, skip
     [ -n "$session_id" ] || return 0
     
-    # Check if session still exists in opencode
+    # Check if forked session still exists in opencode
     if ! opencode session list 2>/dev/null | grep -q "$session_id"; then
-        # Session ended — check if work was done
+        # Forked session ended — check if work was done
         local worktree_path=$(issue_ref_to_worktree_path "$issue_ref" "$HOME/.kugetsu-worktrees")
         local has_commits=false
         
@@ -64,10 +70,47 @@ while true; do
                 
                 pm_session=$(get_pm_agent_session_id)
                 if [ -n "$pm_session" ] && [ "$pm_session" != "null" ]; then
+                    # Compute worktree path for this issue
+                    worktree_path=$(issue_ref_to_worktree_path "$issue_ref" "$HOME/.kugetsu-worktrees")
+                    
+                    # Ensure worktree exists, create if needed
+                    if [ ! -d "$worktree_path" ]; then
+                        echo "Creating worktree for $issue_ref at $worktree_path..."
+                        create_worktree "$issue_ref" "$HOME/.kugetsu-worktrees"
+                    fi
+                    
+                    # Capture sessions before fork to identify the new forked session
+                    sessions_before=$(opencode session list 2>/dev/null || echo "")
+                    
                     log_file="$LOGS_DIR/delegate-$(date +%s).log"
-                    nohup env GITEA_TOKEN="$GITEA_TOKEN" sh -c "opencode run '$message' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
+                    # Use --fork --dir to run in the correct worktree directory
+                    # The forked session will end when the task completes, while parent pm_session continues
+                    (cd "$worktree_path" && nohup bash -c "export GITEA_TOKEN=$GITEA_TOKEN; opencode run '$message' --fork --session '$pm_session' --dir '$worktree_path'" >> "$log_file" 2>&1) &
                     pid=$!
-                    update_queue_item_state "$queue_id" "notified" "$pm_session" "$pid"
+                    
+                    # Wait for fork to initialize and capture new session
+                    sleep 3
+                    
+                    # Find the forked session ID by comparing session lists
+                    sessions_after=$(opencode session list 2>/dev/null || echo "")
+                    forked_session=""
+                    while IFS= read -r line; do
+                        session=$(echo "$line" | awk '{print $1}' | tr -d '[:space:]')
+                        if [ -n "$session" ] && ! echo "$sessions_before" | grep -q "$session"; then
+                            forked_session="$session"
+                            break
+                        fi
+                    done <<< "$sessions_after"
+                    
+                    # Store the forked session ID (not the parent pm_session) for completion detection
+                    if [ -n "$forked_session" ]; then
+                        update_queue_item_state "$queue_id" "notified" "$forked_session" "$pid"
+                        echo "Task $queue_id notified with forked session $forked_session for $issue_ref"
+                    else
+                        # Fallback: still update with empty session so task isn't stuck
+                        update_queue_item_state "$queue_id" "notified" "" "$pid"
+                        echo "Task $queue_id notified but could not capture forked session for $issue_ref"
+                    fi
                 fi
             fi
         done