0.2.40: bitcoin-denominated line on the LP capital chart

The capital-over-time chart gains a dashed orange series on its own
right-hand ₿ axis: total value (ending balance + distributions) divided
by the BTC price at each statement date — the time-series of the
"In bitcoin terms" box. The history table gains a matching In-bitcoin
column. Frontend-only; prices were already stamped per statement.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

deploy/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ten31portal-startos",
-  "version": "0.2.39",
+  "version": "0.2.40",
   "private": true,
   "scripts": {
     "build": "npm run check && rm -rf ./javascript && ncc build startos/index.ts -o ./javascript",