Sign panel sessions and isolate test runs

- Replace in-memory auth sessions with signed cookies and signed OAuth state
- Add auth route coverage and update panel/web server wiring
- Switch test script to per-file Bun processes and clean up type checks

shared/scripts/simulate-ci.sh

@@ -92,7 +92,7 @@ if [ -n "$1" ]; then
         EXIT_CODE=1
     fi
 else
-    if bash shared/scripts/test-sequential.sh --integration; then
+    if bash shared/scripts/test-isolated.sh --integration; then
         echo "✅ CI Simulation Passed!"
         EXIT_CODE=0
     else

shared/scripts/test-isolated.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+set -euo pipefail
+
+INCLUDE_INTEGRATION=false
+if [[ "${1:-}" == "--integration" ]]; then
+    INCLUDE_INTEGRATION=true
+fi
+
+JOBS="${AURORA_TEST_JOBS:-4}"
+
+echo "🔍 Finding test files..."
+if [ "$INCLUDE_INTEGRATION" = true ]; then
+    FIND_ARGS=( -name "*.test.ts" )
+else
+    FIND_ARGS=( -name "*.test.ts" -not -name "*.integration.test.ts" )
+fi
+
+TEST_FILES=()
+while IFS= read -r file; do
+    TEST_FILES+=("$file")
+done < <(find . "${FIND_ARGS[@]}" -not -path "*/node_modules/*" | sort)
+
+if [ "${#TEST_FILES[@]}" -eq 0 ]; then
+    echo "⚠️ No test files found!"
+    exit 0
+fi
+
+echo "🧪 Running ${#TEST_FILES[@]} test files with isolated Bun processes..."
+echo "   Workers: $JOBS"
+if [ "$INCLUDE_INTEGRATION" = true ]; then
+    echo "   (including integration tests)"
+fi
+
+if printf '%s\n' "${TEST_FILES[@]}" | xargs -n1 -P "$JOBS" bash -lc 'echo "---------------------------------------------------"; echo "running: $1"; bun test "$1"' _; then
+    echo "---------------------------------------------------"
+    echo "✅ All tests passed!"
+    exit 0
+fi
+
+echo "---------------------------------------------------"
+echo "❌ Some tests failed."
+exit 1

shared/scripts/test-sequential.sh

@@ -1,49 +0,0 @@
-#!/bin/bash
-set -e
-
-INCLUDE_INTEGRATION=false
-if [[ "$1" == "--integration" ]]; then
-    INCLUDE_INTEGRATION=true
-fi
-
-echo "🔍 Finding test files..."
-if [ "$INCLUDE_INTEGRATION" = true ]; then
-    TEST_FILES=$(find . -name "*.test.ts" -not -path "*/node_modules/*")
-else
-    TEST_FILES=$(find . -name "*.test.ts" -not -name "*.integration.test.ts" -not -path "*/node_modules/*")
-fi
-
-if [ -z "$TEST_FILES" ]; then
-    echo "⚠️ No test files found!"
-    exit 0
-fi
-
-echo "🧪 Running tests sequentially..."
-if [ "$INCLUDE_INTEGRATION" = true ]; then
-    echo "   (including integration tests)"
-fi
-
-FAILED=0
-
-for FILE in $TEST_FILES; do
-    echo "---------------------------------------------------"
-    echo "running: $FILE"
-    if bun test "$FILE"; then
-        echo "✅ passed: $FILE"
-    else
-        echo "❌ failed: $FILE"
-        FAILED=1
-        # Fail fast
-        exit 1
-    fi
-done
-
-if [ $FAILED -eq 0 ]; then
-    echo "---------------------------------------------------"
-    echo "✅ All tests passed!"
-    exit 0
-else
-    echo "---------------------------------------------------"
-    echo "❌ Some tests failed."
-    exit 1
-fi