feat(ci): add Cardano node compatibility script for release notes

Author: jpraynaud

.github/workflows/scripts/compute-cardano-compatibility.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+set -e
+
+JSON_FILE=$1
+
+if [[ ! -f "$JSON_FILE" ]]; then
+    echo "Error: $JSON_FILE not found!"
+    exit 1
+fi
+
+# Get all unique keys from 'cardano-minimum-version'
+MITHRIL_NODES=$(jq -r '[.[] | .["cardano-minimum-version"] | keys[]] | unique | .[]' "$JSON_FILE")
+
+# Create header of the markdown table
+header="| Network"
+separator="|----------"
+
+for key in $MITHRIL_NODES; do
+    title=$(echo "$key" | sed 's/-/ /g' | sed 's/\b\w/\U&/g')
+    header="$header | $title"
+    separator="$separator |:-------------:"
+done
+
+header="$header |"
+separator="$separator |"
+
+echo ""
+echo "## Cardano Node Compatibility"
+echo ""
+echo "$header"
+echo "$separator"
+
+# Process each top-level network (mainnet, preprod, preview)
+for MITHRIL_NETWORK in $(jq -r 'keys[]' "$JSON_FILE"); do
+    # Get all mithril-networks for this top-level network
+    jq -r ".\"$MITHRIL_NETWORK\".\"mithril-networks\"[] | keys[]" "$JSON_FILE" | while read -r MITHRIL_NETWORK_NAME; do
+        row="| $MITHRIL_NETWORK_NAME"
+        
+        # For each cardano-minimum-version key, get the value
+        for MITHRIL_NODE in $MITHRIL_NODES; do
+            version=$(jq -r ".\"$MITHRIL_NETWORK\".\"cardano-minimum-version\".\"$MITHRIL_NODE\" // \"N/A\"" "$JSON_FILE")
+            if [[ "$version" != "N/A" ]]; then
+                row="$row | Cardano \`$version+\`"
+            else
+                row="$row | N/A"
+            fi
+        done
+        
+        row="$row |"
+        echo "$row"
+    done
+done