fix(harness): pass through per-session interrupt overloads to delegate

[cluski]

Fixes #1683

Summary

HarnessAgent only delegated the legacy no-arg interrupt() and interrupt(Msg) methods to the underlying ReActAgent. The new per-session overloads added in 2.0.0-RC2 (accepting RuntimeContext or userId+sessionId pairs) were not exposed, making it impossible to interrupt a specific session when a single HarnessAgent instance serves multiple concurrent sessions.

Changes

Add four passthrough methods to HarnessAgent that delegate to the corresponding ReActAgent overloads:

• interrupt(RuntimeContext ctx)
• interrupt(RuntimeContext ctx, Msg msg)
• interrupt(String userId, String sessionId)
• interrupt(String userId, String sessionId, Msg msg)

These are not on the Agent interface, so they are added as public methods on HarnessAgent directly (same pattern as other delegate passthrough methods in the class).

How to Test

1. Build: mvn compile -pl agentscope-harness -am
2. Tests: mvn test -pl agentscope-harness -am
3. Manual verification: create a HarnessAgent serving multiple sessions concurrently, call agent.interrupt(userId, sessionId) to interrupt a specific session without affecting others.

Checklist

• Code has been formatted with mvn spotless:apply
• All tests are passing (mvn test)
• Javadoc comments are complete and follow project conventions
• Related documentation has been updated (e.g. links, examples, etc.)
• Code is ready for review

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[AgentScopeJavaBot]

🤖 AI Review

This is a clean, well-scoped fix that adds four per-session interrupt passthrough methods to HarnessAgent, delegating to the corresponding ReActAgent overloads introduced in 2.0.0-RC2. The implementation follows the established delegate-passthrough pattern already used throughout the class. Javadocs are complete and consistent. The test suite covers all four new overloads, including a valuable session-isolation test that verifies interrupting one session does not affect another — directly validating the core fix described in the PR. No issues found.

[AgentScopeJavaBot]

🤖 AI Review

This is a clean, well-scoped fix that adds four per-session interrupt passthrough methods to HarnessAgent, delegating to the corresponding ReActAgent overloads introduced in 2.0.0-RC2. The implementation follows the established delegate-passthrough pattern already used throughout the class. Javadocs are complete and consistent. The test suite covers all four new overloads, including a valuable session-isolation test that verifies interrupting one session does not affect another — directly validating the core fix described in the PR. No issues found.