more detailed definitions of api responses

we need better definitions of all the properties that get returned from our endpoints, ie what is the difference between the `index_block_hash` and the `hash`?

example response:

```jsonc
{
"block_height": 361536,
"block_hash": "0xc99ef63126f48ca8b7d47a123bc3200dd935d75729430f7054252192f2b6f96e",
"block_time": 1734710434,
"index_block_hash": "0xd60f3c659e81f5e7fac203479a9d23c4a7e69c38701235a0d6b283d66b92c5d6",
"burn_block_height": 875611,
"tenure_height": 178392,
"signer_data": {
"cycle_number": 99,
"total_signer_count": 44,
"accepted_count": 36,
"rejected_count": 0,
"missing_count": 8,
"accepted_excluded_count": 12,
"average_response_time_ms": 5559,
"block_proposal_time_ms": 1734710440164,
"accepted_stacked_amount": "431016657130188",
"rejected_stacked_amount": "0",
"missing_stacked_amount": "20669886265726",
"accepted_weight": 3579,
"rejected_weight": 0,
"missing_weight": 170
}
}
```