Method update

apps/api/src/keys/keys.controller.ts:22–32

(
    @CurrentUser() user: AuthUser,
    @Body() body: { env?: unknown; value?: unknown },
  )

  /** Set or clear one of this user's provider API keys (by env var name). */
  @Put()
  update(
    @CurrentUser() user: AuthUser,
    @Body() body: { env?: unknown; value?: unknown },
  ): KeysUpdateResponse {
    if (typeof body.env !== "string" || typeof body.value !== "string") {
      throw new BadRequestException({ error: "env and value are required" });
    }
    this.keys.setByEnv(user.id, body.env, body.value);
    this.engine.invalidate(user.id);
    return { ok: true, keys: this.keys.listMasked(user.id) };
  }
}