propose verification spec changes (#2336)

<!-- Reference any GitHub issues resolved by this PR -->

## Introduced changes

<!-- A brief description of the changes -->

This PR introduces changes to verification proposal document mainly as
follows:
1. Actual verification to be performed on class level
2. Keep `contract_address` (user should be able to provide
contract_address, which we resolve to `class_hash`)
Add `class_hash`
** Either contract_address or class_hash should be provided by user
3. Change `contract_name` to `class_name` OR keep `contract_name`

## Checklist

<!-- Make sure all of these are complete -->

- [ ] Linked relevant issue
- [x] Updated relevant documentation
- [ ] Added relevant tests
- [x] Performed self-review of the code
- [ ] Added changes to `CHANGELOG.md`

crates/forge/tests/e2e/running.rs

@@ -61,7 +61,7 @@ fn simple_package_with_git_dependency() {
 
     temp.copy_from("tests/data/simple_package", &["**/*.cairo", "**/*.toml"])
         .unwrap();
-    let remote_url = get_remote_url();
+    let remote_url = get_remote_url().to_lowercase();
     let branch = get_current_branch();
     let manifest_path = temp.child("Scarb.toml");
     manifest_path

design_documents/contract_verification.md

@@ -26,7 +26,7 @@ The `verify` command will perform following actions:
 
 #### Parameters
 
-#### `--contract-name`
+#### `--class-name`
 
 Required.
 Name of the contract to be submitted for verification.
@@ -36,6 +36,11 @@ Name of the contract to be submitted for verification.
 Required.
 Address of the contract to be submitted for verification.
 
+#### `--class-hash`
+
+Required.
+Address of the contract to be submitted for verification.
+
 #### `--verifier <VERIFIER NAME>`
 
 Required.
@@ -61,11 +66,14 @@ To implement contract verification for a specific explorer, it is required to im
 #### Request
 
 - `ContractAddress` - `ContractAddress`
-- `ContractName` - `String`
+- `ClassHash` - `String`
+- `ClassName` - `String`
 - `SourceCode` - collection of file records (`.cairo` files  + `Scarb.toml`):
   - `FilePath` - `String`
   - `FileContent` - `String`
 
+Note: `ContractAddress` and `ClassHash` are mutually exclusive. One of them must be provided.
+
 #### Response
 
 - `VerificationStatus` - `Enum` (`OK`, `Error`)
@@ -81,8 +89,9 @@ A sample request in the Voyager API adapter implementation will look as follows:
 const url = `${voyager.testnet.url}/contract/`
 
 const payload = serde_json::json!({
-        "contract_address": "0x0",
-        "contract_name": "balance",
+        "contract_address": "0x0", // this is optional if class_hash is provided
+        "class_hash": "0x0", // this is optional if contract_address is provided
+        "class_name": "balance",
         "source_code": {
             "Scarb.toml" : {
                 """