feat: robust metric extraction with confidence score and proof snippets

- fixed Year-Prefix Bug in MetricParser
- added metric_confidence and metric_proof_text to database
- added Entity-Check and Annual-Priority to LLM prompt
- improved UI: added confidence traffic light and mouse-over proof tooltip
- restored missing API endpoints (create, bulk, wiki-override)

company-explorer/frontend/node_modules/tailwindcss/src/lib/partitionApplyAtRules.js

@@ -0,0 +1,52 @@
+function partitionRules(root) {
+  if (!root.walkAtRules) return
+
+  let applyParents = new Set()
+
+  root.walkAtRules('apply', (rule) => {
+    applyParents.add(rule.parent)
+  })
+
+  if (applyParents.size === 0) {
+    return
+  }
+
+  for (let rule of applyParents) {
+    let nodeGroups = []
+    let lastGroup = []
+
+    for (let node of rule.nodes) {
+      if (node.type === 'atrule' && node.name === 'apply') {
+        if (lastGroup.length > 0) {
+          nodeGroups.push(lastGroup)
+          lastGroup = []
+        }
+        nodeGroups.push([node])
+      } else {
+        lastGroup.push(node)
+      }
+    }
+
+    if (lastGroup.length > 0) {
+      nodeGroups.push(lastGroup)
+    }
+
+    if (nodeGroups.length === 1) {
+      continue
+    }
+
+    for (let group of [...nodeGroups].reverse()) {
+      let clone = rule.clone({ nodes: [] })
+      clone.append(group)
+      rule.after(clone)
+    }
+
+    rule.remove()
+  }
+}
+
+export default function expandApplyAtRules() {
+  return (root) => {
+    partitionRules(root)
+  }
+}