feat: add Manus provider#700

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hhh2210 wants to merge 4 commits intosteipete:mainfrom

hhh2210:manus-provider-main

Commits on Apr 12, 2026

Add Manus credits provider
hhh2210
committed

Commits on Apr 14, 2026

fix: address Copilot and Codex review feedback for Manus provider

hhh2210
and
claude
committed

Commits on Apr 17, 2026