feat(prover): Move prover_autoscaler config into crate (#3222)

## What ❔

Move prover_autoscaler config into crate.
Remove protobuf monstrosity.
Create kube client only in Agent.

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## Why ❔

To simplify config management and allow using hashmaps directly in yaml
config.
Also this reduces number of used time crates to 2, reduces build time
and size.

Kube client was created for Scaler too, but was never used.

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## Checklist

<!-- Check your PR fulfills the following items. -->
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- [x] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Tests for the changes have been added / updated.
- [ ] Documentation comments have been added / updated.
- [x] Code has been formatted via `zkstack dev fmt` and `zkstack dev
lint`.

ref ZKD-1855

Cargo.toml

@@ -172,7 +172,6 @@ sqlx = "0.8.1"
 static_assertions = "1.1"
 structopt = "0.3.20"
 strum = "0.26"
-strum_macros = "0.26.4"
 tempfile = "3.0.2"
 test-casing = "0.1.2"
 test-log = "0.2.15"

core/lib/config/Cargo.toml

@@ -18,15 +18,10 @@ zksync_concurrency.workspace = true
 zksync_vlog = { workspace = true, optional = true }
 tracing = { workspace = true, optional = true }
 
-url.workspace = true
 anyhow.workspace = true
 rand.workspace = true
 secrecy.workspace = true
 serde = { workspace = true, features = ["derive"] }
-time = { workspace = true, features = ["serde-human-readable"] }
-strum.workspace = true
-strum_macros.workspace = true
-vise.workspace = true
 
 [dev-dependencies]
 serde_json.workspace = true

core/lib/config/src/configs/mod.rs

@@ -60,7 +60,6 @@ pub mod house_keeper;
 pub mod object_store;
 pub mod observability;
 pub mod proof_data_handler;
-pub mod prover_autoscaler;
 pub mod prover_job_monitor;
 pub mod pruning;
 pub mod secrets;

core/lib/config/src/configs/observability.rs

@@ -1,6 +1,8 @@
+use serde::Deserialize;
+
 /// Configuration for the essential observability stack, like
 /// logging and sentry integration.
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Deserialize)]
 pub struct ObservabilityConfig {
     /// URL of the Sentry instance to send events to.
     pub sentry_url: Option<String>,
@@ -15,7 +17,7 @@ pub struct ObservabilityConfig {
     pub log_directives: Option<String>,
 }
 
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Deserialize)]
 pub struct OpentelemetryConfig {
     /// Enables export of span data of specified level (and above) using opentelemetry exporters.
     pub level: String,

core/lib/protobuf_config/Cargo.toml

@@ -26,7 +26,6 @@ rand.workspace = true
 hex.workspace = true
 secrecy.workspace = true
 tracing.workspace = true
-time.workspace = true
 
 [build-dependencies]
 zksync_protobuf_build.workspace = true

core/lib/protobuf_config/src/lib.rs

@@ -28,7 +28,6 @@ mod observability;
 mod proof_data_handler;
 pub mod proto;
 mod prover;
-mod prover_autoscaler;
 mod prover_job_monitor;
 mod pruning;
 mod secrets;