[TeoSlayer]

Reject tool calls unless their names are present in the declared tool list. The previous truthiness check treated an empty or malformed list as unrestricted, allowing undeclared model output to reach tool evaluation. Refs #391.

Regression tests cover empty and malformed declarations and a declared tool; the two rejection cases fail before the fix. Synced with upstream dependency/watchdog fixes, with session startup synchronized in the SIGINT test. Full Linux CI passes.

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[TeoSlayer]

Verified that empty/malformed tool declarations reject undeclared calls while declared tools remain valid. All CI checks pass.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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  Coverage        ?   82.63%           
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  Files           ?      170           
  Lines           ?    24331           
  Branches        ?        0           
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  Hits            ?    20106           
  Misses          ?     4225           
  Partials        ?        0           

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