[E2E] Major E2E test refactor, add WebSocket and Cosmos SDK test cases (#373)

## 🌿 Summary

Major refactor of E2E tests to add WebSocket support and comprehensive
Cosmos SDK test cases, along with improved test organization and
documentation.

### 🌱 Primary Changes:
- Added WebSocket testing support for EVM JSON-RPC methods with
persistent connections
- Implemented full Cosmos SDK test coverage including REST, CometBFT,
and EVM endpoints
- Refactored test code into logical packages for better maintainability
(assertions, calculations, logging, etc.)

### 🍃 Secondary changes:
- Updated CI workflows to include WebSocket test jobs
- Enhanced documentation with WebSocket testing instructions
- Improved test metrics and reporting with better error tracking
- Added support for testing Pocket and XRPLEVM services in CI

## 🛠️ Type of change

Select one or more from the following:

- [x] New feature, functionality or library

## 🤯 Sanity Checklist

- [x] For code, I have run 'make test_all'

---------

Co-authored-by: Arash Deshmeh <adshmh@gmail.com>
Co-authored-by: Daniel Olshansky <olshansky.daniel@gmail.com>

Author: 3 people

.github/workflows/run-e2e-tests.yml

@@ -52,14 +52,14 @@ jobs:
   # ------------------------------------ #
 
   run-e2e-tests-shannon:
-    name: Run E2E tests - Shannon
+    name: Run E2E tests - HTTP Requests
     runs-on: "ubuntu-22.04"
     needs:
       - build-and-test-docker-image
     strategy:
       matrix:
         # DEV_NOTE: Add new services here if they should be tested as part of the Shannon E2E CI suite
-        service_id: [eth]
+        service_id: [eth, pocket, xrplevm]
     steps:
       - uses: actions/checkout@v4
 
@@ -136,3 +136,47 @@ jobs:
 
       - name: Run E2E test - ETH Fallback
         run: make e2e_test_eth_fallback ${{ secrets.SHANNON_ETH_FALLBACK_URL }}
+
+  run-e2e-tests-websockets:
+    name: Run E2E tests - WebSockets
+    runs-on: "ubuntu-22.04"
+    needs:
+      - build-and-test-docker-image
+    strategy:
+      matrix:
+        # DEV_NOTE: Only xrplevm supports WebSocket testing currently
+        service_id: [xrplevm]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.24"
+
+      - name: Download Docker image artifact from previous job
+        uses: actions/download-artifact@v4
+        with:
+          name: path-image
+          path: ${{ runner.temp }}
+
+      - name: Load Docker image
+        run: |
+          docker load --input ${{ runner.temp }}/path-image.tar
+          docker image ls -a
+
+      - name: copy Shannon E2E config
+        run: make config_prepare_shannon_e2e
+
+      - name: update Shannon E2E config from secrets
+        env:
+          SHANNON_GATEWAY_ADDRESS: ${{ secrets.SHANNON_GATEWAY_ADDRESS }}
+          SHANNON_GATEWAY_PRIVATE_KEY: ${{ secrets.SHANNON_GATEWAY_PRIVATE_KEY }}
+          SHANNON_OWNED_APPS_PRIVATE_KEYS: ${{ secrets.SHANNON_OWNED_APPS_PRIVATE_KEYS}}
+        run: ./e2e/scripts/ci/update_shannon_config_from_secrets.sh
+
+      - name: Set Docker container to log to stdout in CI environment
+        run: ./e2e/scripts/ci/set_docker_log.sh
+
+      - name: Run WebSocket E2E test - Service ID ${{ matrix.service_id }}
+        run: make e2e_test_websocket ${{ matrix.service_id }}

config/config_test.go

@@ -93,7 +93,7 @@ func Test_LoadGatewayConfigFromYAML(t *testing.T) {
 					SystemOverheadAllowanceDuration: defaultSystemOverheadAllowanceDuration,
 				},
 				Logger: LoggerConfig{
-					Level: defaultLogLevel,
+					Level: "error",
 				},
 			},
 			wantErr: false,

config/examples/config.shannon_example.yaml

@@ -78,4 +78,4 @@ shannon_config:
 logger_config:
   # Valid values are: debug, info, warn, error
   # Defaults to info if not specified
-  level: "info"
+  level: "error"