fix remote control multi endpoint still use default credentials

[whz14]

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[changeset-bot]

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Latest commit: 807e0e9

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Resolve the persisted OAuth ref before loading the token

When a user selects the global OAuth login (or another endpoint persisted in config.toml) without endpoint environment variables, both values passed here are undefined, so this derives the default mainland credential key. Login persists a scoped key from the configured baseUrl and OAuth ref, and normal runtime auth reads that configuration, so /remote-control will either claim the user is not logged in or use a stale credential from the wrong region. Load the persisted provider configuration through the SDK and apply the same runtime-auth resolution used by login/runtime before selecting the token slot.

AGENTS.md reference: apps/kimi-code/AGENTS.md:L45-L45

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[chatgpt-codex-connector]

Add a changeset for the user-visible credential fix

This changes shipped CLI behavior by making Remote Control select a different credential slot, but the commit contains no .changeset entry. Without the required CLI patch changeset, this user-visible bug fix will be omitted from the generated release changelog; add a short @moonshot-ai/kimi-code patch changeset.

AGENTS.md reference: AGENTS.md:L85-L85

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