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/jiti/dist/utils.d.ts

@@ -0,0 +1,8 @@
+import type { PackageJson } from "pkg-types";
+export declare function getCacheDir(): string;
+export declare function isDir(filename: string): boolean;
+export declare function isWritable(filename: string): boolean;
+export declare function md5(content: string, len?: number): string;
+export declare function detectLegacySyntax(code: string): RegExpMatchArray | null;
+export declare function isObject(val: any): boolean;
+export declare function readNearestPackageJSON(path: string): PackageJson | undefined;