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/buildMediaQuery.js

@@ -0,0 +1,22 @@
+export default function buildMediaQuery(screens) {
+  screens = Array.isArray(screens) ? screens : [screens]
+
+  return screens
+    .map((screen) => {
+      let values = screen.values.map((screen) => {
+        if (screen.raw !== undefined) {
+          return screen.raw
+        }
+
+        return [
+          screen.min && `(min-width: ${screen.min})`,
+          screen.max && `(max-width: ${screen.max})`,
+        ]
+          .filter(Boolean)
+          .join(' and ')
+      })
+
+      return screen.not ? `not all and ${values}` : values
+    })
+    .join(', ')
+}