Add coverage prettification and sorting functionality

- Introduced `prettify.css` for syntax highlighting in coverage reports.
- Added `prettify.js` to handle code formatting and highlighting.
- Included `sort-arrow-sprite.png` for sort indicators in the coverage table.
- Implemented `sorter.js` to enable sorting and filtering of coverage summary tables.
- Added a search box for filtering table rows based on user input.

.codex/skills/issue-resolve/phases/01-issue-plan.md

@@ -249,14 +249,12 @@ for (const pending of pendingSelections) {
     description: sol.description || sol.approach || 'No description'
   }));
 
-  const answer = AskUserQuestion({
-    questions: [{
-      question: `Issue ${pending.issue_id}: which solution to bind?`,
-      header: pending.issue_id,
-      options: options,
-      multiSelect: false
-    }]
-  });
+  const answer = ASK_USER([{
+    id: pending.issue_id,
+    type: "select",
+    prompt: `Issue ${pending.issue_id}: which solution to bind?`,
+    options: options
+  }]);  // BLOCKS (wait for user response)
 
   const selected = answer[Object.keys(answer)[0]];
   if (!selected || selected === 'Other') continue;