It is very very unlikely that your bright child is the first bright child the teachers/school will have come across. There are a number of chldren who go to school able to read and write, or do other types of things.
There is absolutely no reason why a reception class cannot accomodate the needs of a bright child. If the school is not doing this in a month or two, then go and speak to the teacher and discuss your child with them.
But I would be quite sceptical of any 4/5yo child is truely bored all the time they are in school at this age.
I think you are better asking them more specific questions about their day:
What was the best thing you did?
Who did you play with?
Did you play in the home corner; what did you play at?
Have you been playing at making things int he sand/water today?
When you went outside, did you use the balls, etc?
Then you can expand on it.
Yes, a bright child may well be able to read - but really, they still have so much more to learn even in this area. They will sit with the teacher for individual reading at least once or twice a week to read a book (often chosen by the child with teacher guidance). They talk about why the book was chosen, what they think will happen in it, etc. Then they read it. A good reader will show hpw good she is here and then the teaher can work on other areas - new phonemes she may not be aware of, infliction int he voice, punctuation, fluency and expression, different types of text (poetry, non fiction, etc).
They may be able to write too. Well, most writing tasks are in themselves open for expansion. A bright child can add detail to their work, use adjectives to make it interesting. Use their phonics knowledge to write trickier and trickier words. They can practise their handwriting skills to ensure letters are formed correctly, that their writing becomes smaller and neater, and possibly even more onto cursive and joined up writing.
Same for numbers work.
And for phonics too. Remember that a good reader does not always equal a good speller. This is why phonics is very important still.