chore: move WSL2 test scripts to scripts directory

For consistency with other shell scripts in the codebase.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/test_wsl2_wal.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+# Test script to reproduce GH#1224 - SQLite WAL mode on WSL2 bind mounts
+
+set -e
+
+echo "=== Testing SQLite WAL mode on WSL2 bind mounts ==="
+
+# Check if we're in WSL2
+if ! grep -qi microsoft /proc/version; then
+    echo "Not running in WSL2, skipping test"
+    exit 0
+fi
+
+# Create test directory in different locations
+test_paths=(
+    "/tmp/beads-test-wal"                    # /tmp (Linux filesystem)
+    "/mnt/c/temp/beads-test-wal"             # Windows filesystem (if available)
+)
+
+# Add Docker Desktop bind mount if available
+if [ -d "/mnt/wsl" ]; then
+    test_paths+=("/mnt/wsl/beads-test-wal")  # Docker Desktop bind mount
+fi
+
+for test_path in "${test_paths[@]}"; do
+    echo ""
+    echo "Testing WAL mode at: $test_path"
+    
+    # Create directory
+    mkdir -p "$test_path"
+    
+    # Test with SQLite CLI
+    sqlite3 "$test_path/test.db" "PRAGMA journal_mode=WAL;" 2>&1 | head -1
+    
+    # Check if WAL was actually enabled
+    journal_mode=$(sqlite3 "$test_path/test.db" "PRAGMA journal_mode;" 2>&1 | head -1)
+    echo "Journal mode: $journal_mode"
+    
+    # Clean up
+    rm -rf "$test_path"
+done
+
+echo ""
+echo "=== Test complete ==="