fix(extensions): prevent AutoContextMemory compression from hanging

[Xiaozhiyao]

AgentScope-Java Version

1.0.11

Description

• Fixes [Bug]:AutoContextMemory卡死造成agent响应卡住，在AutoContextMemory.java:753 #1028
• Add a timeout guard for LLM-based AutoContext compression so compression will not block agent reasoning indefinitely
• Clean up temporary offloaded context when compression times out
• Add a regression test covering a never-completing compression model stream

Checklist

Please check the following items before code is ready to be reviewed.

• 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

Testing

mvn -pl agentscope-extensions/agentscope-extensions-autocontext-memory spotless:apply
mvn -pl agentscope-extensions/agentscope-extensions-autocontext-memory -am "-Dtest=AutoContextMemoryTest,AutoContextHookTest" test

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[cla-assistant]

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[codecov]

Codecov Report

❌ Patch coverage is 87.30159% with 8 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ope/core/memory/autocontext/AutoContextMemory.java	85.96%	0 Missing and 8 partials ⚠️

📢 Thoughts on this report? Let us know!

[Xiaozhiyao]

Added follow-up timeout regression tests and pushed an update. Relevant tests pass locally.

[LearningGp]

@shiyiyue1102 PTAL

[Xiaozhiyao]

Hi @shiyiyue1102 , sorry to ping again. Could you please take a look when you have a moment?