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/Dockerfile

@@ -4,6 +4,7 @@ WORKDIR /build
 COPY frontend/package*.json ./
 RUN npm install
 COPY frontend/ ./
+RUN grep "ROBOTICS EDITION" src/App.tsx || echo "Version string not found in App.tsx"
 RUN npm run build
 
 # --- STAGE 2: Backend & Runtime ---