Reorganize package layout and rename core/account types: - Move channel hook & socket sources/tests into packages/channel-hook and packages/channel-socket (many files renamed). - Remove ChannelManager from packages/channel and drop its export from package.json (multi-account host folded into Hub). - Update tests to use HookSink instead of BridgeManagerSink. - In @snowluma/core: move account/apis/* up to src/apis, rename account-context→core-context, account-interface→core-ctx, account→core, and add hub.ts; delete AccountManager. - Update constructors and type usages to accept CoreContext/CoreCtx and adapt identifiers accordingly. This is a refactor to clarify responsibilities (split transport implementations, fold multi-account manager into Hub, and rebrand the account layer as Core).
手瓜一十雪
af8d5ab06b