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/@babel/plugin-transform-react-jsx-source/README.md

@@ -0,0 +1,19 @@
+# @babel/plugin-transform-react-jsx-source
+
+> Add a __source prop to all JSX Elements
+
+See our website [@babel/plugin-transform-react-jsx-source](https://babeljs.io/docs/babel-plugin-transform-react-jsx-source) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save-dev @babel/plugin-transform-react-jsx-source
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/plugin-transform-react-jsx-source --dev
+```