fix syntax highligthing

Author: tac0turtle

RELEASE.md

@@ -4,7 +4,7 @@ This document outlines the release process for all Go packages in the ev-node re
 
 ## Package Dependency Graph
 
-```ascii
+```txt
                         ┌──────────┐
                         │   core   │ (zero dependencies)
                         └────┬─────┘

client/README.md

@@ -4,7 +4,7 @@ This directory contains client libraries for interacting with Evolve nodes in va
 
 ## Structure
 
-```ascii
+```txt
 client/
 ├── crates/           # Rust client libraries
 │   ├── types/    # Generated protobuf types for Rust

docs/adr/adr-015-rollkit-minimal-header.md

@@ -10,7 +10,7 @@ The Rollkit minimal header is a streamlined version of the traditional header, f
 
 ### Rollkit Minimal Header Structure
 
-```ascii
+```txt
 ┌─────────────────────────────────────────────┐
 │             Rollkit Minimal Header          │
 ├─────────────────────┬───────────────────────┤
@@ -69,7 +69,7 @@ This minimal Rollkit header can be transformed to be tailored to a specific exec
 
 #### Transformation to EVM Header
 
-```ascii
+```txt
 ┌─────────────────────────────────────────────┐
 │             Rollkit Minimal Header          │
 └───────────────────┬─────────────────────────┘
@@ -118,7 +118,7 @@ This header can be transformed into an ABCI-specific header for IBC compatibilit
 
 #### Transformation to ABCI Header
 
-```ascii
+```txt
 ┌─────────────────────────────────────────────┐
 │             Rollkit Minimal Header          │
 └───────────────────┬─────────────────────────┘
@@ -163,7 +163,7 @@ This header can be transformed into an ABCI-specific header for IBC compatibilit
 
 ### Header Transformation Flow
 
-```ascii
+```txt
 ┌─────────────────────────────────────────────┐
 │             Rollkit Minimal Header          │
 │                                             │

docs/adr/adr-018-rpc.md

@@ -68,7 +68,7 @@ service StoreService {
 
 ### Implementation Structure
 
-```tree
+```txt
 pkg/
     rpc/
       server/

docs/adr/adr-019-forced-inclusion-mechanism.md

@@ -189,7 +189,7 @@ func (n *Node) ValidateBlockTimeWindow(ctx context.Context, block *types.Block)
 
 The following diagram illustrates the operation flow for the sequencer with forced inclusion:
 
-```ascii
+```txt
 ┌─────────────────────────────────────────────────────────────────────────────────┐
 │                           Sequencer Operation Flow                              │
 └─────────────────┬───────────────────────────────────────────────────────────────┘
@@ -235,7 +235,7 @@ The following diagram illustrates the operation flow for the sequencer with forc
 
 The following diagram illustrates the operation flow for full nodes with forced inclusion support:
 
-```ascii
+```txt
 ┌─────────────────────────────────────────────────────────────────────────────────┐
 │                           Full Node Operation Flow                              │
 └─────────────────────────────────────────────────────────────────────────────────┘

docs/adr/adr-022-validator-network.md

@@ -93,7 +93,7 @@ Missing participation at the epoch boundary x/network evaluates participation:
 
 Solidity Contract
 
-```sol
+```txt
 contract StakeManager {
     struct Validator { uint96 power; bytes32 edKey; bytes blsKey; }
     mapping(address => Validator) public validators;

pkg/rpc/README.md

@@ -8,7 +8,7 @@ The RPC implementation uses [Connect-Go](https://connectrpc.com/docs/go/getting-
 
 ## Directory Structure
 
-```tree
+```txt
 pkg/rpc/
   ├── client/       # Client implementation
   │   └── client.go

scripts/README-EVM.md

@@ -66,7 +66,7 @@ go build -tags run_evm -o run-evm-nodes scripts/run-evm-nodes.go
 
 ### Architecture
 
-```ascii
+```txt
 ┌─────────────────┐     ┌─────────────────┐
 │   Sequencer     │     │   Full Node     │
 │  (Aggregator)   │◄────┤                 │