Release v0.0.18

diagnostic bridge (#56)

* fix(watch): support isolated classloaders

Route injected watch callbacks through a bootstrap-visible bridge so isolated target classloaders do not depend on agent implementation classes.

Fixes #54

* feat: generalize diagnostic bridge and class targeting

Agent: codex

* chore: update TUI classloader targeting

Agent: codex

* chore: release version 0.0.18

Agent: codex

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Co-authored-by: QinShower <zhangwenming0906@163.com>