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/value-parser/index.js

@@ -0,0 +1,28 @@
+var parse = require('./parse')
+var walk = require('./walk')
+var stringify = require('./stringify')
+
+function ValueParser(value) {
+  if (this instanceof ValueParser) {
+    this.nodes = parse(value)
+    return this
+  }
+  return new ValueParser(value)
+}
+
+ValueParser.prototype.toString = function () {
+  return Array.isArray(this.nodes) ? stringify(this.nodes) : ''
+}
+
+ValueParser.prototype.walk = function (cb, bubble) {
+  walk(this.nodes, cb, bubble)
+  return this
+}
+
+ValueParser.unit = require('./unit')
+
+ValueParser.walk = walk
+
+ValueParser.stringify = stringify
+
+module.exports = ValueParser