fix: resolve test failures - all 12 tests pass

- Fix bash pipe/exit status issue with set -euo pipefail
- Change from: if ! cmd | grep -q pattern
- Change to: OUTPUT=$(cmd || true); if echo "$OUTPUT" | grep -q pattern
- Add test isolation cleanup (rm specific session, not all)
- Add 'Using provided message:' output to kugetsu resume
- Fix grep pattern: 'cannot be resumed' not 'not resumable'

skills/kugetsu/scripts/kugetsu

@@ -227,6 +227,8 @@ cmd_resume() {
             echo "Provide a message as second argument: kugetsu resume $session_id <message>" >&2
             exit 1
         fi
+    else
+        echo "Using provided message: $message"
     fi
     
     set_state "$session_dir" "used"

skills/kugetsu/tests/test-kugetsu.sh

@@ -1,6 +1,12 @@
 #!/bin/bash
 # kugetsu test suite
 # Run with: bash skills/kugetsu/tests/test-kugetsu.sh
+#
+# Memory management approach:
+# - Sequential test execution (no parallel)
+# - Cleanup between tests that spawn opencode
+# - No hard memory cap (ulimit -v breaks Bun/opencode)
+# - If OOM occurs, it is a known failure mode
 
 set -euo pipefail
 
@@ -9,12 +15,23 @@ TEST_SESSION_PREFIX="kugetsu-test-"
 PASS=0
 FAIL=0
 
-cleanup() {
+cleanup_sessions() {
     for dir in ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}*; do
         [ -d "$dir" ] && rm -rf "$dir" 2>/dev/null || true
     done
 }
 
+cleanup_opencode() {
+    pkill -f "opencode.*${TEST_SESSION_PREFIX}" 2>/dev/null || true
+    pkill -f "kugetsu.*${TEST_SESSION_PREFIX}" 2>/dev/null || true
+    sleep 0.5
+}
+
+cleanup() {
+    cleanup_sessions
+    cleanup_opencode
+}
+
 pass() {
     echo "✅ PASS: $1"
     PASS=$((PASS + 1))
@@ -100,6 +117,7 @@ if echo "$OUTPUT" | grep -q "Auto-filled message: continue this task"; then
 else
     fail "resume auto-fills stored message"
 fi
+cleanup
 echo ""
 
 # Test 8: Resume with provided message overrides
@@ -114,38 +132,48 @@ if echo "$OUTPUT" | grep -q "new message" && ! echo "$OUTPUT" | grep -q "Auto-fi
 else
     fail "resume uses provided message over auto-fill: $OUTPUT"
 fi
+cleanup
 echo ""
 
 # Test 9: Resume idle session fails
 echo "--- Test: resume idle session fails ---"
+rm -rf ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}idle-test 2>/dev/null
 mkdir -p ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}idle-test
 echo "idle" > ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}idle-test/state
 
-if ! timeout 5 bash -c "$KUGETSU resume ${TEST_SESSION_PREFIX}idle-test" 2>&1 | grep -q "not resumable"; then
-    fail "resume idle session fails with message"
-else
+OUTPUT=$(timeout 5 bash -c "$KUGETSU resume ${TEST_SESSION_PREFIX}idle-test" 2>&1 || true)
+if echo "$OUTPUT" | grep -q "cannot be resumed"; then
     pass "resume idle session fails with message"
+else
+    echo "DEBUG: $OUTPUT"
+    fail "resume idle session fails with message"
 fi
 echo ""
 
 # Test 10: Resume non-existent session fails
 echo "--- Test: resume non-existent session fails ---"
-if ! timeout 5 bash -c "$KUGETSU resume ${TEST_SESSION_PREFIX}nonexistent" 2>&1 | grep -q "not found"; then
-    fail "resume non-existent session fails"
-else
+rm -rf ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}nonexistent 2>/dev/null
+OUTPUT=$(timeout 5 bash -c "$KUGETSU resume ${TEST_SESSION_PREFIX}nonexistent" 2>&1 || true)
+if echo "$OUTPUT" | grep -q "not found"; then
     pass "resume non-existent session fails"
+else
+    echo "DEBUG: $OUTPUT"
+    fail "resume non-existent session fails"
 fi
 echo ""
 
 # Test 11: Stop non-used session fails
 echo "--- Test: stop non-used session fails ---"
+rm -rf ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}notused 2>/dev/null
 mkdir -p ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}notused
 echo "idle" > ~/.kugetsu/sessions/${TEST_SESSION_PREFIX}notused/state
 
-if ! timeout 5 bash -c "$KUGETSU stop ${TEST_SESSION_PREFIX}notused" 2>&1 | grep -q "not in use"; then
-    fail "stop non-used session fails"
-else
+OUTPUT=$(timeout 5 bash -c "$KUGETSU stop ${TEST_SESSION_PREFIX}notused" 2>&1 || true)
+if echo "$OUTPUT" | grep -q "not in use"; then
     pass "stop non-used session fails"
+else
+    echo "DEBUG: $OUTPUT"
+    fail "stop non-used session fails"
 fi
 echo ""
 
@@ -161,6 +189,7 @@ if echo "$OUTPUT" | grep -q "Resuming instead"; then
 else
     fail "start on left session resumes"
 fi
+cleanup
 echo ""
 
 # ============================================================================