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/dlv/dist/dlv.es.js

@@ -0,0 +1,2 @@
+export default function(t,e,l,n,r){for(e=e.split?e.split("."):e,n=0;n<e.length;n++)t=t?t[e[n]]:r;return t===r?l:t}
+//# sourceMappingURL=dlv.es.js.map