fix(content.js): add CRITICAL severity to highlight mapping, tooltip badge

extension/content.js

@@ -1,6 +1,8 @@
 /**
- * ClauseGuard — Content Script
+ * ClauseGuard — Content Script v4.3
  * Page scanning + highlighting + auth bridge.
+ *
+ * FIXED v4.3: CRITICAL severity is now handled in highlights and tooltips.
  * 
  * Auth bridge: listens for postMessage from the website's ExtensionBridge component.
  * Content scripts CAN receive window.postMessage from the page — they share the same
@@ -16,6 +18,9 @@
   let isScanning = false;
   let currentHighlights = [];
 
+  // Severity ordering (higher = more severe)
+  const SEV_ORDER = { CRITICAL: 4, HIGH: 3, MEDIUM: 2, LOW: 1 };
+
   // ─── Auth Bridge ───
   // Listen for auth sync from our website (ExtensionBridge component sends this)
   window.addEventListener("message", (event) => {
@@ -103,13 +108,18 @@
     try {
       const range = document.createRange();
       range.setStart(textNode, start); range.setEnd(textNode, end);
-      const severity = clauseData.categories.reduce((m, c) => ({ HIGH:3,MEDIUM:2,LOW:1 }[c.severity] > ({ HIGH:3,MEDIUM:2,LOW:1 }[m]) ? c.severity : m), "LOW");
+      // FIX v4.3: Use numeric ordering that includes CRITICAL
+      const severity = clauseData.categories.reduce((m, c) =>
+        (SEV_ORDER[c.severity] || 0) > (SEV_ORDER[m] || 0) ? c.severity : m
+      , "LOW");
       const mark = document.createElement("mark");
       mark.className = `clauseguard-highlight clauseguard-${severity.toLowerCase()}`;
       mark.dataset.categories = JSON.stringify(clauseData.categories);
       mark.addEventListener("mouseenter", showTooltip);
       mark.addEventListener("mouseleave", hideTooltip);
-      mark.addEventListener("click", () => { try { chrome.runtime.sendMessage({ type: "OPEN_SIDEPANEL" }); } catch {} });
+      mark.addEventListener("click", () => {
+        try { chrome.runtime.sendMessage({ type: "OPEN_SIDEPANEL" }); } catch {}
+      });
       range.surroundContents(mark);
       currentHighlights.push(mark);
     } catch (e) {}