feat(CON-1413): Create local transcripts for Vetkeys (#3387)

This PR adds functionality to generate local NiDkg transcripts for
Vetkeys to the DKG component.

- Introduce `get_enabled_vet_keys` to get all NiDKG key ids from the
`ChainKeyConfig`.
- Introduce the `tags_iter` function, which iterates over `LowThreshold`
and `HighThreshold` as well as provided `HighThresholdForKeyId` variants
off `NiDkgTag`
- Unit tests to capture the new behaviour
- Adapt test code
- Adapt CUP loading functions to load the `initializations`

---------

Co-authored-by: Leo Eichhorn <[email protected]>

rs/consensus/dkg/BUILD.bazel

@@ -13,6 +13,7 @@ DEPENDENCIES = [
     "//rs/protobuf",
     "//rs/registry/helpers",
     "//rs/replicated_state",
+    "//rs/types/management_canister_types",
     "//rs/types/types",
     "@crate_index//:prometheus",
     "@crate_index//:rayon",
@@ -24,13 +25,16 @@ DEV_DEPENDENCIES = [
     "//rs/artifact_pool",
     "//rs/consensus/mocks",
     "//rs/crypto/test_utils/ni-dkg",
+    "//rs/interfaces/registry/mocks",
+    "//rs/registry/subnet_features",
     "//rs/test_utilities",
     "//rs/test_utilities/artifact_pool",
     "//rs/test_utilities/consensus",
     "//rs/test_utilities/logger",
     "//rs/test_utilities/registry",
     "//rs/test_utilities/state",
     "//rs/test_utilities/types",
+    "@crate_index//:prost",
 ]
 
 rust_library(

rs/consensus/dkg/Cargo.toml

@@ -12,6 +12,7 @@ ic-interfaces = { path = "../../interfaces" }
 ic-interfaces-registry = { path = "../../interfaces/registry" }
 ic-interfaces-state-manager = { path = "../../interfaces/state_manager" }
 ic-logger = { path = "../../monitoring/logger" }
+ic-management-canister-types-private = { path = "../../types/management_canister_types" }
 ic-metrics = { path = "../../monitoring/metrics" }
 ic-protobuf = { path = "../../protobuf" }
 ic-registry-client-helpers = { path = "../../registry/helpers" }
@@ -22,10 +23,14 @@ slog = { workspace = true }
 rayon = { workspace = true }
 
 [dev-dependencies]
+
+ic-interfaces-registry-mocks = { path = "../../interfaces/registry/mocks" }
+ic-test-artifact-pool = { path = "../../test_utilities/artifact_pool" }
+prost = { workspace = true }
 ic-artifact-pool = { path = "../../artifact_pool" }
 ic-consensus-mocks = { path = "../mocks" }
 ic-crypto-test-utils-ni-dkg = { path = "../../crypto/test_utils/ni-dkg" }
-ic-test-artifact-pool = { path = "../../test_utilities/artifact_pool" }
+ic-registry-subnet-features = { path = "../../registry/subnet_features" }
 ic-test-utilities = { path = "../../test_utilities" }
 ic-test-utilities-consensus = { path = "../../test_utilities/consensus" }
 ic-test-utilities-logger = { path = "../../test_utilities/logger" }

rs/consensus/dkg/src/dkg_key_manager.rs

@@ -483,8 +483,7 @@ impl DkgKeyManager {
             .consensus_membership_registry_version
             .set(summary.registry_version.get() as i64);
 
-        for tag in [NiDkgTag::LowThreshold, NiDkgTag::HighThreshold].iter() {
-            let current_transcript = summary.current_transcript(tag).unwrap();
+        for (tag, current_transcript) in summary.current_transcripts() {
             let metric_label = &format!("{:?}", tag);
 
             self.metrics