docs: add tooltip explanation for Amino DHT

[RudraBhaskar9439]

Describe your changes

As a beginner I found it difficult to first time see the term Amino DHT so Added a hover tooltip to the term "Amino DHT" in docs/concepts/lifecycle.md. This provides immediate context for readers who might be unfamiliar with the term, matching the style of other tooltips in the documentation (e.g., HTTP).

Files changed

• docs/concepts/lifecycle.md

What issue(s) does this address?

• Improves documentation clarity and accessibility for beginners.

Does this update depend on any other PRs?

• No

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