Implement BDEF v1.1 grading: scoring core, per-deck pipeline, ledger, dashboard, StartOS layer

- Deterministic scoring.py (quant 60 / qual 40 / flags -15, profitability heaviest)
- Per-company JSON ledger with forecast-target chaining deck N-1 -> N
- Single-shot sandbox agent with guided-JSON fallback ladder (no tool loop)
- Portfolio dashboard with sparklines, KPI hit rates, BDEF category bars
- 48 unit tests green; endpoints smoke-tested; npm check+build green

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

package.json

@@ -1,7 +1,7 @@
 {
   "name": "boardroom-map-startos",
   "version": "0.1.0",
-  "description": "StartOS service: drop confidential documents in and have a panel of local LLMs on your DGX Sparks review them — fully air-gappable, no frontier oversight",
+  "description": "StartOS service: grade portfolio-company board decks with a panel of local LLMs on your DGX Sparks — BDEF v1.1 scoring, per-company running scorecards, fully air-gappable",
   "scripts": {
     "build": "rm -rf ./javascript && ncc build startos/index.ts -o ./javascript",
     "check": "tsc --noEmit",