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/util/nameClass.js

@@ -0,0 +1,30 @@
+import escapeClassName from './escapeClassName'
+import escapeCommas from './escapeCommas'
+
+export function asClass(name) {
+  return escapeCommas(`.${escapeClassName(name)}`)
+}
+
+export default function nameClass(classPrefix, key) {
+  return asClass(formatClass(classPrefix, key))
+}
+
+export function formatClass(classPrefix, key) {
+  if (key === 'DEFAULT') {
+    return classPrefix
+  }
+
+  if (key === '-' || key === '-DEFAULT') {
+    return `-${classPrefix}`
+  }
+
+  if (key.startsWith('-')) {
+    return `-${classPrefix}${key}`
+  }
+
+  if (key.startsWith('/')) {
+    return `${classPrefix}${key}`
+  }
+
+  return `${classPrefix}-${key}`
+}