perf(l1)!: enable BlobDB for account bytecodes (#5300)

**Motivation**

<!-- Why does this pull request exist? What are its goals? -->

**Description**

This PR changes the account_codes CF to use RocksDB [BlobDB
functionality](https://github.com/facebook/rocksdb/wiki/BlobDB), which
moves values outside from the tree, to independent files. We expect this
to increase the read performance, since bytecodes can have vastly
different sizes, and some occupy multiple page lines.

---------

Co-authored-by: Javier Chatruc <[email protected]>
Co-authored-by: Javier Rodríguez Chatruc <[email protected]>

Author: MegaRedHand

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Perf
 
+### 2025-11-13
+
+- Use BlobDB for account_codes column family [#5300](https://github.com/lambdaclass/ethrex/pull/5300)
+
 ### 2025-11-12
 
 - Only mark individual values as dirty instead of the whole trie [#5282](https://github.com/lambdaclass/ethrex/pull/5282)

Cargo.lock

@@ -118,7 +118,10 @@ uuid = { version = "1.18.1", features = ["v4"] }
 tower-http = { version = "0.6.2", features = ["cors"] }
 indexmap = { version = "2.11.4" }
 
-rocksdb = { version="0.24.0", default-features = false, features = ["bindgen-runtime"] }
+rocksdb = { version = "0.24.0", default-features = false, features = [
+  "bindgen-runtime",
+  "lz4",
+] }
 
 [patch.crates-io]
 secp256k1 = { git = "https://github.com/sp1-patches/rust-secp256k1", tag = "patch-0.30.0-sp1-5.0.0" }

Cargo.toml

@@ -302,7 +302,21 @@ impl Store {
                     block_opts.set_bloom_filter(10.0, false); // 10 bits per key
                     cf_opts.set_block_based_table_factory(&block_opts);
                 }
-                CF_RECEIPTS | CF_ACCOUNT_CODES => {
+                CF_ACCOUNT_CODES => {
+                    cf_opts.set_write_buffer_size(128 * 1024 * 1024); // 128MB
+                    cf_opts.set_max_write_buffer_number(3);
+                    cf_opts.set_target_file_size_base(256 * 1024 * 1024); // 256MB
+
+                    cf_opts.set_enable_blob_files(true);
+                    // Small bytecodes should go inline (mainly for delegation indicators)
+                    cf_opts.set_min_blob_size(32);
+                    cf_opts.set_blob_compression_type(rocksdb::DBCompressionType::Lz4);
+
+                    let mut block_opts = BlockBasedOptions::default();
+                    block_opts.set_block_size(32 * 1024); // 32KB
+                    cf_opts.set_block_based_table_factory(&block_opts);
+                }
+                CF_RECEIPTS => {
                     cf_opts.set_write_buffer_size(128 * 1024 * 1024); // 128MB
                     cf_opts.set_max_write_buffer_number(3);
                     cf_opts.set_target_file_size_base(256 * 1024 * 1024); // 256MB