Fixed compilation errors in benchmark test files where `ctx` was declared twice, preventing benchmarks from running. Changes: - internal/storage/sqlite/bench_helpers_test.go: Remove duplicate ctx declaration - internal/storage/sqlite/compact_bench_test.go: Remove duplicate ctx declaration This allows `go test -tags=bench` to compile and run successfully. Related to bd-5qim verification. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>