fix: suppress flutter root warning; fix set -e masking grep hints on failure

The "Woah! You appear to be running flutter as root" warning on stderr
was filtered out with grep -v in the test/analyze/coverage pipelines.

Also fixes a latent bug: set -euo pipefail caused the script to exit
immediately on flutter failure, so the "Grep with:" hint was never
printed on failure — exactly when it's most needed. Replaced with
set -uo pipefail and EXIT_CODE=${PIPESTATUS[0]} to capture flutter's
exit code while letting the hint always print.

Author: claude

mise-tasks/analyze.sh

@@ -2,11 +2,13 @@
 #MISE description="Run after Dart changes — pass a path to limit scope; grep output with the path printed at start"
 #MISE depends=["generate"]
 
-set -euo pipefail
+set -uo pipefail
 ANALYZE_LOG="${ANALYZE_LOG:-$(mktemp /tmp/analyze-XXXXXX.log)}"
 echo "ANALYZE_LOG=$ANALYZE_LOG"
-flutter analyze --no-fatal-infos "$@" 2>&1 | tee "$ANALYZE_LOG"
-EXIT_CODE=$?
+flutter analyze --no-fatal-infos "$@" 2>&1 \
+	| grep -v -E "Woah! You appear|superuser privileges" \
+	| tee "$ANALYZE_LOG"
+EXIT_CODE=${PIPESTATUS[0]}
 echo "---"
 echo "Grep with: grep -n 'error\|warning' $ANALYZE_LOG"
-exit $EXIT_CODE
+exit "$EXIT_CODE"

mise-tasks/coverage.sh

@@ -2,7 +2,9 @@
 #MISE description="Run tests with coverage reporting (output: coverage/lcov.info)"
 #MISE depends=["generate"]
 
-set -euo pipefail
-flutter test --coverage
+set -uo pipefail
+flutter test --coverage 2>&1 | grep -v -E "Woah! You appear|superuser privileges"
+EXIT_CODE=${PIPESTATUS[0]}
 echo "Coverage report generated at coverage/lcov.info"
 echo "To view HTML report, install lcov and run: genhtml coverage/lcov.info -o coverage/html"
+exit "$EXIT_CODE"

mise-tasks/test.sh

@@ -2,11 +2,13 @@
 #MISE description="Run before committing — pass a file arg to run a subset; grep output with the path printed at start"
 #MISE depends=["generate"]
 
-set -euo pipefail
+set -uo pipefail
 TEST_LOG="${TEST_LOG:-$(mktemp /tmp/test-XXXXXX.log)}"
 echo "TEST_LOG=$TEST_LOG"
-flutter test "$@" 2>&1 | tee "$TEST_LOG"
-EXIT_CODE=$?
+flutter test "$@" 2>&1 \
+	| grep -v -E "Woah! You appear|superuser privileges" \
+	| tee "$TEST_LOG"
+EXIT_CODE=${PIPESTATUS[0]}
 echo "---"
 echo "Grep with: grep -n 'FAILED\|ERROR' $TEST_LOG"
-exit $EXIT_CODE
+exit "$EXIT_CODE"