feat: Live-Paper-Engine — 5-min-Loop, API, Dashboard, Dockerfile

processCycle spiegelt Runner-Semantik exakt (Paritätstest gegen runBacktest),
Restart-Recovery über Cursor, DecisionLog mit Outcome-Backfill,
Bun.serve-API + statisches Dashboard, Deploy-Ziel trading.kuns.dev.

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

package.json

@@ -3,6 +3,7 @@
   "private": true,
   "type": "module",
   "scripts": {
+    "start": "bun run db:migrate && bun run src/server/index.ts",
     "test": "bun test",
     "backfill": "bun run src/server/scripts/backfill.ts",
     "walkforward": "bun run src/server/scripts/walkforward.ts",