test(kugetsu): add unit tests for status, delegate, doctor, notify commands

Added 10 new tests:
- kugetsu status (5 tests): uninitialized, base missing, pm-agent missing, Python None handling, session expired
- kugetsu delegate (2 tests): no message, pm-agent missing
- kugetsu doctor (1 test): basic command execution
- kugetsu notify (2 tests): list with no file, clear with no file

Total tests: 38 (all passing)

skills/kugetsu/tests/test-kugetsu-v2.sh

@@ -354,6 +354,135 @@ else
 fi
 echo ""
 
+# Test 21: status when not initialized
+echo "--- Test: status (not initialized) ---"
+cleanup
+OUTPUT=$($KUGETSU status 2>&1 || true)
+if [ "$OUTPUT" = "kugetsu_not_initialized" ]; then
+    pass "status returns kugetsu_not_initialized when no index.json"
+else
+    fail "status not initialized: got '$OUTPUT', expected 'kugetsu_not_initialized'"
+fi
+echo ""
+
+# Test 22: status when base missing
+echo "--- Test: status (base missing) ---"
+mkdir -p ~/.kugetsu/sessions
+cat > ~/.kugetsu/index.json << EOF
+{
+  "base": null,
+  "pm_agent": "$TEST_PM_AGENT_SESSION_ID",
+  "issues": {}
+}
+EOF
+OUTPUT=$($KUGETSU status 2>&1 || true)
+if [ "$OUTPUT" = "base_session_missing" ]; then
+    pass "status returns base_session_missing when base is null"
+else
+    fail "status base missing: got '$OUTPUT', expected 'base_session_missing'"
+fi
+echo ""
+
+# Test 23: status when pm-agent missing
+echo "--- Test: status (pm-agent missing) ---"
+cat > ~/.kugetsu/index.json << EOF
+{
+  "base": "$TEST_BASE_SESSION_ID",
+  "pm_agent": null,
+  "issues": {}
+}
+EOF
+OUTPUT=$($KUGETSU status 2>&1 || true)
+if [ "$OUTPUT" = "pm_agent_missing" ]; then
+    pass "status returns pm_agent_missing when pm_agent is null"
+else
+    fail "status pm_agent missing: got '$OUTPUT', expected 'pm_agent_missing'"
+fi
+echo ""
+
+# Test 24: status when pm-agent is "None" (Python None output)
+echo "--- Test: status (pm-agent is Python None) ---"
+cat > ~/.kugetsu/index.json << EOF
+{
+  "base": "$TEST_BASE_SESSION_ID",
+  "pm_agent": "None",
+  "issues": {}
+}
+EOF
+OUTPUT=$($KUGETSU status 2>&1 || true)
+if [ "$OUTPUT" = "pm_agent_missing" ]; then
+    pass "status returns pm_agent_missing when pm_agent is 'None'"
+else
+    fail "status pm_agent 'None': got '$OUTPUT', expected 'pm_agent_missing'"
+fi
+echo ""
+
+# Test 25: status when all good (pm-agent in json but session expired)
+echo "--- Test: status (session expired) ---"
+setup_mock_base
+OUTPUT=$($KUGETSU status 2>&1 || true)
+if [ "$OUTPUT" = "pm_agent_expired" ]; then
+    pass "status returns pm_agent_expired when session not in opencode"
+else
+    fail "status session expired: got '$OUTPUT', expected 'pm_agent_expired'"
+fi
+echo ""
+
+# Test 26: delegate without message
+echo "--- Test: delegate (no message) ---"
+cleanup
+OUTPUT=$($KUGETSU delegate 2>&1 || true)
+if echo "$OUTPUT" | grep -q "Error: message is required"; then
+    pass "delegate fails without message"
+else
+    fail "delegate no message: got '$OUTPUT', expected error about message required"
+fi
+echo ""
+
+# Test 27: delegate when pm-agent missing
+echo "--- Test: delegate (pm-agent missing) ---"
+setup_mock_base
+OUTPUT=$($KUGETSU delegate "test" 2>&1 || true)
+if echo "$OUTPUT" | grep -q "Error: PM agent session"; then
+    pass "delegate fails when PM agent not found"
+else
+    fail "delegate pm-agent missing: got '$OUTPUT', expected error about PM agent"
+fi
+echo ""
+
+# Test 28: doctor command works
+echo "--- Test: doctor command ---"
+cleanup
+OUTPUT=$($KUGETSU doctor 2>&1 || true)
+if echo "$OUTPUT" | grep -q "kugetsu doctor"; then
+    pass "doctor command works"
+else
+    fail "doctor command: got '$OUTPUT', expected doctor output"
+fi
+echo ""
+
+# Test 29: notify list when no file
+echo "--- Test: notify list (no file) ---"
+cleanup
+OUTPUT=$($KUGETSU notify list 2>&1 || true)
+if [ "$OUTPUT" = "[]" ]; then
+    pass "notify list returns empty array when file missing"
+else
+    fail "notify list no file: got '$OUTPUT', expected '[]'"
+fi
+echo ""
+
+# Test 30: notify clear when no file
+echo "--- Test: notify clear (no file) ---"
+cleanup
+OUTPUT=$($KUGETSU notify clear 2>&1 || true)
+if [ -z "$OUTPUT" ] || echo "$OUTPUT" | grep -q "marked as read"; then
+    pass "notify clear works when file missing (no-op)"
+else
+    fail "notify clear: got '$OUTPUT', expected success or empty"
+fi
+echo ""
+
 # Cleanup
 cleanup