[tui] Create TUI adapters for user settings data hooks

[roninjin10]

Create TUI adapters for user settings data hooks

Type: engineering
Domain: Codeplane TUI

Create TUI-side adapter hooks that wrap @codeplane/ui-core data hooks for all user settings endpoints. Hooks needed: useUser(), useUpdateUser(), useUserEmails(), useAddEmail(), useDeleteEmail(), useSendVerification(), useUserSSHKeys(), useAddSSHKey(), useDeleteSSHKey(), useUserTokens(), useCreateToken(), useDeleteToken(), useNotificationPreferences(), useUpdateNotificationPreferences(), useUserConnectedAccounts(), useDisconnectAccount(). Each hook should provide loading/error/data states and mutation functions with optimistic update support. Implementation in apps/tui/src/hooks/useSettingsData.ts.

Dependencies: tui-navigation-provider, tui-theme-provider

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