chore(benchmark): implement consolidated architecture aligned with go-casbin

[AKonnyaku]

Summary

This PR refactors the benchmark module to align with the go-casbin implementation. The new design uses 4 core files to cover all test scenarios and improves measurement reliability.

Technical Implementation

1. Core Architecture

The benchmark suite is now composed of the following 4 files:

• BenchmarkRunner.java: Central entry point with multi-mode support.
• BenchmarkEnforce.java: Auth throughput testing for all models using JMH parameters.
• BenchmarkManagement.java: Management API performance testing.
• BenchmarkMemory.java: Heap memory analysis.

2. Alignment with go-casbin

• Scenario Coverage: Supports ACL, RBAC (Small, Medium, Large scales), and ABAC scenarios.
• Data Generation: Dynamically generates 100,000 rules in memory for large-scale tests, following the logic used in the Go implementation.

3. Measurement Accuracy

• Anti-JIT: Uses cyclic request lists to prevent JIT constant folding and simulate realistic branch prediction.
• I/O Control: Disables internal enforcer logging during active measurement rounds to ensure throughput metrics are not affected by console I/O.

4. Execution Modes

The runner supports three modes via the BENCHMARK_MODE environment variable:

• SMOKE: 2-minute targeted run for PR validation.
• AGILE: 15-minute full coverage run with 1s iterations for automated monitoring.
• STRICT: 3-hour high-precision run for release auditing.

Visualization

Performance data is compatible with automated tracking and visualization tools.
Performance dashboard: (To be updated after merge)

Related Issues

Ref #472
Ref #479

[CLAassistant]

All committers have signed the CLA.

[hsluoyz]

replaced by: #480