fix(kugetsu): init creates base session in ~/.kugetsu-worktrees and adds context to forked sessions

1. Init: cd to ~/.kugetsu-worktrees before creating base session
   This keeps all worktrees inside a predictable directory structure
   and avoids external_directory permission issues

2. Fork context: Add kugetsu_get_fork_context() that provides:
   - Important working rules (stop on error, don't pivot)
   - Repository configuration from repos.json
   - Environment file location info

3. Fork message: Prepend context to user message when forking session

skills/kugetsu/SKILL.md

@@ -49,9 +49,6 @@ A default config file is created during `kugetsu init` with commented examples:
 | `MAX_CONCURRENT_AGENTS` | 3 | Maximum number of concurrent dev agents |
 | `KUGETSU_TEMP_DIR` | `~/.local/share/opencode/tool-output` | Temp directory for subagent tool output (useful in headless environments where /tmp is restricted) |
 | `KUGETSU_VERBOSITY` | `default` | PM agent verbosity level: `verbose`, `default`, or `quiet` |
-| `QUEUE_DAEMON_INTERVAL_MINUTES` | 5 | How often daemon polls queue (in minutes) |
-| `QUEUE_DAEMON_BATCH_SIZE` | 2 | How many tasks daemon picks per poll |
-| `QUEUE_CLEANUP_AGE_DAYS` | 7 | Auto-cleanup completed/error items older than N days |
 
 ### Environment Variables for Agents
 
@@ -114,10 +111,6 @@ Each issue session gets its own git worktree to prevent conflicts:
 ├── worktrees/
 │   ├── github.com-shoko-kugetsu-14/     # Isolated workdir for issue #14
 │   └── github.com-shoko-kugetsu-15/     # Isolated workdir for issue #15
-├── queue/
-│   ├── items/                      # Queue item JSON files
-│   ├── daemon.pid                   # Daemon process ID
-│   └── daemon.log                  # Daemon log output
 └── index.json                       # Maps session IDs and issue refs to session files
 ```
 
@@ -265,17 +258,16 @@ kugetsu destroy --base -y
 
 ### kugetsu delegate `<message>`
 
-Send a message to the PM agent for task coordination via queue:
+Send a message to the PM agent for task coordination (fire-and-forget):
 ```bash
 kugetsu delegate "work on issue #14"
 kugetsu delegate "review PR #92"
 ```
 
-- **Always enqueues** (fire-and-forget): returns immediately
+- Non-blocking: returns immediately, runs in background
-- Queue daemon polls queue and invokes PM when slots available
+- PM agent processes the message asynchronously
-- Tasks are processed FIFO (first-in-first-out)
+- Uses `KUGETSU_VERBOSITY` env var to control PM agent output verbosity
-- Use `kugetsu queue list` to see pending tasks
+- Log output stored in `~/.kugetsu/logs/delegate-<timestamp>.log`
-- Use `kugetsu queue-daemon logs` to debug queue processing
 
 ### kugetsu logs [n]
 
@@ -336,79 +328,35 @@ kugetsu server default github   # Set default server
 kugetsu server get github       # Get server URL
 ```
 
-### kugetsu queue <list|stats|clear>
+### kugetsu queue <list|enqueue|dequeue|clear>
 
 Manage task queue for autonomous PM operation:
 ```bash
-kugetsu queue list              # Show queued tasks with status
+kugetsu queue list              # Show queued tasks
-kugetsu queue stats            # Show queue statistics (total, pending, notified, completed, error)
+kugetsu queue enqueue "task"   # Add task to queue
-kugetsu queue clear            # Clean up old completed/error items
+kugetsu queue dequeue          # Remove next task from queue
-kugetsu queue enqueue <issue-ref> <message>  # Manually enqueue a task
+kugetsu queue clear            # Clear all queued tasks
 ```
 
-**Queue Item States:**
+- Queue stored in `~/.kugetsu/queue.json`
-- `pending` - Waiting in queue, daemon can pick up
-- `notified` - PM agent has picked up the task
-- `completed` - Dev agent finished, PR created
-- `error` - Timeout or failure
-
-### kugetsu queue-daemon <start|stop|restart|status|logs>
-
-Manage the queue daemon background process:
-```bash
-kugetsu queue-daemon start     # Start daemon in background
-kugetsu queue-daemon stop      # Stop daemon
-kugetsu queue-daemon restart    # Restart daemon
-kugetsu queue-daemon status    # Check if daemon is running
-kugetsu queue-daemon logs       # Show recent daemon logs
-```
-
-**Daemon Behavior:**
-1. Runs at configurable interval (default: 5 minutes)
-2. Checks if active agents < MAX_CONCURRENT_AGENTS
-3. Picks 1-N pending items (configurable batch size)
-4. Forks PM session for each picked item
-5. PM decides whether to use `start` or `continue`
-
-**Queue Directory:**
-```
-~/.kugetsu/queue/
-├── items/                     # Queue item JSON files
-│   ├── q_1234567890.json    # One file per queued task
-│   └── q_1234567891.json
-├── daemon.pid                # Daemon process ID
-├── daemon.lock               # Daemon lock file
-└── daemon.log                # Daemon log output
-```
 
 ## Workflow Example
 
-### First-time Setup
 ```bash
-# Initialize kugetsu (requires TTY)
+# First-time setup (requires TTY)
 kugetsu init
+# Creates: base session + pm-agent session
 
-# Start the queue daemon (for autonomous operation)
+# Start work on issue
-kugetsu queue-daemon start
+kugetsu start github.com/shoko/kugetsu#14 "implement feature X"
-```
+# Creates: worktree at ~/.kugetsu/worktrees/github.com-shoko-kugetsu-14/
 
-### Normal Workflow
+# Continue later
-```bash
-# Enqueue tasks via delegate - agents will process them automatically
-kugetsu delegate "work on issue #14"
-kugetsu delegate "review PR #92"
-
-# Check queue status
-kugetsu queue list           # See pending tasks
-kugetsu queue stats         # See statistics
-
-# Debug queue daemon
-kugetsu queue-daemon status  # Is daemon running?
-kugetsu queue-daemon logs    # See daemon logs
-
-# Continue work on existing issue
 kugetsu continue github.com/shoko/kugetsu#14 "add tests"
 
+# Continue again
+kugetsu continue github.com/shoko/kugetsu#14 "fix failing test"
+
 # List all sessions
 kugetsu list
 
@@ -419,21 +367,6 @@ kugetsu prune --force
 kugetsu destroy github.com/shoko/kugetsu#14
 ```
 
-### Queue Daemon Management
-```bash
-# Check if daemon is running
-kugetsu queue-daemon status
-
-# View daemon logs for debugging
-kugetsu queue-daemon logs
-
-# Restart daemon if needed
-kugetsu queue-daemon restart
-
-# Stop daemon
-kugetsu queue-daemon stop
-```
-
 ## Headless Operation
 
 This design solves the headless CLI limitation discovered in Issue #14: