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/postcss-nested/index.d.ts

@@ -0,0 +1,41 @@
+// Original definitions (@types/postcss-nested)
+// by Maxim Vorontsov <https://github.com/VorontsovMaxim>
+
+import { PluginCreator } from 'postcss'
+
+declare namespace nested {
+  interface Options {
+    /**
+     * By default, plugin will bubble only `@media`, `@supports` and `@layer`
+     * at-rules. Use this option to add your custom at-rules to this list.
+     */
+    bubble?: string[]
+
+    /**
+     * By default, plugin will unwrap only `@font-face`, `@keyframes`,
+     * and `@document` at-rules. You can add your custom at-rules
+     * to this list by this option.
+     */
+    unwrap?: string[]
+
+    /**
+     * By default, plugin will strip out any empty selector generated
+     * by intermediate nesting levels. You can set this option to `true`
+     * to preserve them.
+     */
+    preserveEmpty?: boolean
+
+    /**
+     * The plugin supports the SCSS custom at-rule `@at-root` which breaks
+     * rule blocks out of their nested position. If you want, you can choose
+     * a new custom name for this rule in your code.
+     */
+    rootRuleName?: string
+  }
+
+  type Nested = PluginCreator<Options>
+}
+
+declare const nested: nested.Nested
+
+export = nested