Merge branch 'development'

Previously the chart stopped at the last purchase date. Now a final
point for today is appended so current portfolio value vs total
invested is always visible.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -70,3 +70,9 @@ Dashboard has a chart toggle (Both / Portfolio / 1-Year BTC) using tab state in
 - `purchases`: id, amount_eur, price_eur, created_at, user_id (FK)
 
 Database persists via Docker volume at `/app/data/btc_portfolio.db`.
+
+## Git Workflow
+
+- **Never work directly on `main`.** All development happens on `development` (or a feature branch).
+- After any merge/push to `main`, always switch back to `development` immediately.
+- `main` is only touched to merge in completed work from `development`.

btc-portfolio/frontend/src/components/PortfolioChart.js

@@ -42,6 +42,14 @@ export default function PortfolioChart({ purchases, stats }) {
     investedValues.push(parseFloat(cumInvested.toFixed(2)));
   });
 
+  const todayLabel = new Date().toLocaleDateString();
+  if (labels.length === 0 || labels[labels.length - 1] !== todayLabel) {
+    const currentVal = cumBtc * (stats?.current_price || 0);
+    labels.push(todayLabel);
+    portfolioValues.push(parseFloat(currentVal.toFixed(2)));
+    investedValues.push(parseFloat(cumInvested.toFixed(2)));
+  }
+
   const currentPrice = stats?.current_price || 0;
   const breakEvenLine = labels.map(() => stats?.average_price || 0);