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/parseObjectStyles.js

@@ -0,0 +1,19 @@
+import postcss from 'postcss'
+import postcssNested from 'postcss-nested'
+import postcssJs from 'postcss-js'
+
+export default function parseObjectStyles(styles) {
+  if (!Array.isArray(styles)) {
+    return parseObjectStyles([styles])
+  }
+
+  return styles.flatMap((style) => {
+    return postcss([
+      postcssNested({
+        bubble: ['screen'],
+      }),
+    ]).process(style, {
+      parser: postcssJs,
+    }).root.nodes
+  })
+}