feat(basic_witness_producer_input): Add Basic Witness Producer Input …

…component (matter-labs#156)

# What ❔

This PR introduces a new component that will be ran alongside all
components in the service. The component extracts all information needed
for running Basic Witness Generator in a binary serialized Input and
uploads it to Object Store (GCS for now).

## Why ❔

Part of work decoupling Prover Subsystems from Server Core. Today,
Witness Generators need Server Core Database's access to generate
witnesses. More information can be found
[here](https://www.notion.so/matterlabs/Decouple-Witness-Generator-from-Core-Database-313ece3293d74ee8aea1d1fca823df15)
for the Witness Generator split and
[here](https://www.notion.so/matterlabs/Segregating-prover-and-server-to-use-API-for-communication-6cdcb7a508e84420bdfcb153af0e2524)
for the Prover Subsystems and Server core split.

## Checklist

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<!-- For draft PRs check the boxes as you complete them. -->

- [x] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [x] Tests for the changes have been added / updated.
- [x] Documentation comments have been added / updated.
- [x] Code has been formatted via `zk fmt` and `zk lint`.

core/bin/zksync_server/src/main.rs

@@ -28,7 +28,7 @@ struct Cli {
     /// Comma-separated list of components to launch.
     #[arg(
         long,
-        default_value = "api,tree,eth,data_fetcher,state_keeper,witness_generator,housekeeper"
+        default_value = "api,tree,eth,data_fetcher,state_keeper,witness_generator,housekeeper,basic_witness_input_producer"
     )]
     components: ComponentsToRun,
 }

core/lib/dal/migrations/20231024052911_add_basic_witness_input_producer_jobs_table.down.sql

@@ -0,0 +1,5 @@
+DROP INDEX IF EXISTS idx_basic_witness_input_producer_jobs_status_processing_attempts;
+
+DROP TABLE IF EXISTS basic_witness_input_producer_jobs;
+
+DROP TYPE IF EXISTS basic_witness_input_producer_job_status;

core/lib/dal/migrations/20231024052911_add_basic_witness_input_producer_jobs_table.up.sql

@@ -0,0 +1,18 @@
+CREATE TYPE basic_witness_input_producer_job_status AS ENUM ('Queued', 'ManuallySkipped', 'InProgress', 'Successful', 'Failed');
+
+CREATE TABLE IF NOT EXISTS basic_witness_input_producer_jobs
+(
+    l1_batch_number       BIGINT    NOT NULL PRIMARY KEY,
+    attempts              SMALLINT  NOT NULL DEFAULT 0,
+    status                basic_witness_input_producer_job_status,
+    picked_by             TEXT,
+    input_blob_url        TEXT,
+    error                 TEXT,
+    created_at            TIMESTAMP NOT NULL,
+    updated_at            TIMESTAMP NOT NULL,
+    processing_started_at TIMESTAMP,
+    time_taken            TIME
+);
+
+CREATE INDEX IF NOT EXISTS idx_basic_witness_input_producer_jobs_status_processing_attempts
+    ON basic_witness_input_producer_jobs (status, processing_started_at, attempts);