Add agent skill and LLM usage docs

docs: reorder Start Here — lead with agent bootstrap

docs: require player confirmation before buying a Kami

docs: fix integration guide — remove staking, fix kami acquisition options

docs: remove opinionated build guide from agent bootstrap

docs: comprehensive improvements + contract cross-reference fixes

docs: clarify player bridge routes in quick start

docs: split player onboarding from agent guidance

docs: reorganize resources and guidance layout

docs: fix base bootstrap and kamiswap onboarding

Restructure docs into Core Resources and Agent Guidance

bridge: derive recipient addresses from private key

Add working Yominet bridge script and runbook

docs: handle unfunded owner address in register preflight

docs: harden account register onboarding checks