feat(kugetsu): add KUGETSU_VERBOSITY for PM agent output control

Add KUGETSU_VERBOSITY environment variable with three modes:
- default (default): Normal balanced output
- verbose: High verbosity with all context
- quiet: Minimal output, essential info only

Export KUGETSU_VERBOSITY in cmd_delegate when running opencode.

Fixes #46

skills/kugetsu/scripts/kugetsu

@@ -12,6 +12,8 @@ ENV_DIR="${ENV_DIR:-$KUGETSU_DIR/env}"
 QUEUE_FILE="$KUGETSU_DIR/queue.json"
 MAX_CONCURRENT_AGENTS="${MAX_CONCURRENT_AGENTS:-3}"
 POLL_INTERVAL="${POLL_INTERVAL:-600}"
+KUGETSU_VERBOSITY="${KUGETSU_VERBOSITY:-default}"
+VERBOSITY_DIR="$KUGETSU_DIR/verbosity"
 
 # Load user config overrides (~/.kugetsu/config)
 if [ -f "$KUGETSU_DIR/config" ]; then
@@ -549,6 +551,7 @@ cmd_status() {
 
 cmd_delegate() {
     local message="${1:-}"
+    local verbosity="${KUGETSU_VERBOSITY:-default}"
     
     if [ -z "$message" ]; then
         echo "Error: message is required" >&2
@@ -568,7 +571,7 @@ cmd_delegate() {
     local temp_dir="${KUGETSU_TEMP_DIR:-$HOME/.local/share/opencode/tool-output}"
     
     mkdir -p "$ENV_DIR"
-    local env_sh="set -a; export KUGETSU_TEMP_DIR='$temp_dir'; "
+    local env_sh="set -a; export KUGETSU_TEMP_DIR='$temp_dir'; export KUGETSU_VERBOSITY='$verbosity'; "
     if [ -f "$ENV_DIR/pm-agent.env" ]; then
         env_sh="${env_sh}source '$ENV_DIR/pm-agent.env'; "
     elif [ -f "$ENV_DIR/default.env" ]; then
@@ -579,6 +582,7 @@ cmd_delegate() {
     nohup sh -c "${env_sh}opencode run '$message' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
     disown
     echo "Delegated to PM agent (logged to $(basename "$log_file"))"
+    echo "Verbosity: $verbosity"
 }
 
 cmd_logs() {