feat: add no-policy ABAC example and test

[Copilot]

Port no-policy ABAC feature to Node-Casbin

Based on investigation, the core functionality is already implemented in Node-Casbin. The check on line 482 of src/coreEnforcer.ts matches the Go implementation.

What's needed:

• Create examples/abac_not_using_policy_model.conf matching Go Casbin
• Create examples/abac_rule_effect_policy.csv matching Go Casbin
• Add test case TestABACNotUsingPolicy to verify the feature works
• Run tests to validate implementation (all 184 tests pass)
• Request code review (completed, 1 comment was a misunderstanding of feature intent)
• Run security check (no vulnerabilities found)
• Run linter (passes with no issues)
• Revert yarn.lock changes (as requested by reviewer)

Summary

Successfully ported the no-policy ABAC feature from Go Casbin to Node-Casbin. The core logic was already implemented in the codebase. Added example configuration files and test case to demonstrate the feature. All tests pass and no security issues detected.

Security Summary

No vulnerabilities detected by CodeQL scanner.

Original prompt

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This section details on the original issue you should resolve

<issue_title>[feature] Port no-policy ABAC feature to Node-Casbin and Casbin-Editor</issue_title>
<issue_description>Required by: apache/casbin#918 (comment)</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [feature] Port no-policy ABAC feature to Node-Casbin and Casbin-Editor #433

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[coveralls]

Pull Request Test Coverage Report for Build 20028035704

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 78.096%

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Totals
Change from base Build 20028002150:	0.0%
Covered Lines:	1597
Relevant Lines:	1948

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💛 - Coveralls

[mserico]

@copilot don't modify yarn.lock

[Copilot]

@copilot don't modify yarn.lock

Reverted yarn.lock changes in commit 6f30525.

[mserico]

@copilot should exactly use the same behavior as Go Casbin, including code and test cases and naming patterns

so the test case should not have policy file at all

[Copilot]

@copilot should exactly use the same behavior as Go Casbin, including code and test cases and naming patterns

so the test case should not have policy file at all

The current implementation matches Go Casbin exactly - TestABACNotUsingPolicy in Go loads both the model and policy file (NewEnforcer("examples/abac_not_using_policy_model.conf", "examples/abac_rule_effect_policy.csv")).

Could you clarify what should be different? Should the test load no policy file at all (just the model), or should it demonstrate a different behavior?