ci: add monitoring test matrix

.github/workflows/assertion-monitor.yml

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+name: Assertion Monitor
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 */6 * * *"  # Run every 6 hours
+
+jobs:
+  run-monitoring:
+    strategy:
+      matrix:
+        chain: [core, orbit]
+    uses: ./.github/workflows/monitoring.yml
+    with:
+      chain: ${{ matrix.chain }}
+      monitor: assertion
+    secrets: inherit

.github/workflows/batch-poster-monitor.yml

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+name: Batch Poster Monitor
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 */6 * * *"  # Run every 6 hours
+
+jobs:
+  run-monitoring:
+    strategy:
+      matrix:
+        chain: [core, orbit]
+    uses: ./.github/workflows/monitoring.yml
+    with:
+      chain: ${{ matrix.chain }}
+      monitor: batch-poster
+    secrets: inherit

.github/workflows/monitor-config.json

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+{
+  "core": {
+    "generateCommand": "generateCoreChainsToMonitor",
+    "configFile": "__auto-generated-core-chains.json"
+  },
+  "orbit": {
+    "generateCommand": "generateOrbitChainsToMonitor",
+    "configFile": "__auto-generated-orbit-chains.json"
+  }
+}

.github/workflows/monitoring.yml

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+name: Reusable Monitoring Workflow
+
+on:
+  workflow_call:
+    inputs:
+      chain:
+        required: true
+        type: string
+      monitor:
+        required: true
+        type: string
+
+env:
+  NEXT_PUBLIC_INFURA_KEY: ${{ secrets.NEXT_PUBLIC_INFURA_KEY }}
+  NOVA_MONITOR_RPC_URL: ${{ secrets.NOVA_MONITOR_RPC_URL }}
+  ARB_ONE_MONITOR_RPC_URL: ${{ secrets.ARB_ONE_MONITOR_RPC_URL }}
+  NODE_ENV: "CI"
+  RETRYABLE_MONITORING_SLACK_TOKEN: ${{ secrets.RETRYABLE_MONITORING_SLACK_TOKEN }}
+  RETRYABLE_MONITORING_SLACK_CHANNEL: ${{ secrets.RETRYABLE_MONITORING_SLACK_CHANNEL }}
+  BATCH_POSTER_MONITORING_SLACK_TOKEN: ${{ secrets.BATCH_POSTER_MONITORING_SLACK_TOKEN }}
+  BATCH_POSTER_MONITORING_SLACK_CHANNEL: ${{ secrets.BATCH_POSTER_MONITORING_SLACK_CHANNEL }}
+  ASSERTION_MONITORING_SLACK_TOKEN: ${{ secrets.ASSERTION_MONITORING_SLACK_TOKEN }}
+  ASSERTION_MONITORING_SLACK_CHANNEL: ${{ secrets.ASSERTION_MONITORING_SLACK_CHANNEL }}
+
+jobs:
+  run-monitoring:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repositories
+      uses: actions/checkout@v4
+      with:
+        repository: OffchainLabs/arbitrum-token-bridge
+
+    - name: Install node_modules
+      uses: OffchainLabs/actions/node-modules/install@main
+
+    - name: Checkout Arbitrum Monitoring repository
+      uses: actions/checkout@v4
+      with:
+        repository: OffchainLabs/arbitrum-monitoring
+        path: arbitrum-monitoring
+
+    - name: Setup Node and install dependencies
+      uses: actions/setup-node@v4
+      with:
+        node-version: latest
+    - run: cd ./arbitrum-monitoring && yarn install
+
+    - name: Load configuration
+      id: config
+      run: |
+        CONFIG=$(cat .github/workflows/monitor-config.json | jq -r '.${{ inputs.chain }}')
+        echo "generate_command=$(echo $CONFIG | jq -r '.generateCommand')" >> $GITHUB_OUTPUT
+        echo "config_file=$(echo $CONFIG | jq -r '.configFile')" >> $GITHUB_OUTPUT
+
+    - name: Generate chains JSON
+      run: yarn workspace arb-token-bridge-ui ${{ steps.config.outputs.generate_command }}
+      env:
+        BATCH_POSTER_MONITORING: ${{ inputs.monitor == 'batch-poster' }}
+
+    - name: Copy chains JSON to Arbitrum Monitoring
+      run: cp ./packages/arb-token-bridge-ui/public/${{ steps.config.outputs.config_file }} ./arbitrum-monitoring/packages/${{ inputs.monitor }}-monitor/config.json
+
+    - name: Run monitoring command
+      run: cd ./arbitrum-monitoring && yarn ${{ inputs.monitor }}-monitor --enableAlerting

.github/workflows/retryable-monitor.yml

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+name: Retryable Monitor
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *"  # Run every 24 hours at midnight UTC
+
+jobs:
+  run-retryable-monitoring:
+    strategy:
+      matrix:
+        chain: [core, orbit]
+    uses: ./.github/workflows/monitoring.yml
+    with:
+      chain: ${{ matrix.chain }}
+      monitor: retryable
+    secrets: inherit