fix(report): draw North Indian charts from fences after skipHtml dropped SVG

Longform report pages kept the D1/D9/Moon and varga headings but skipHtml
stripped the engine's inline SVG. Emit a jyotish-chart JSON fence beside
each SVG and render a diamond chart on the reader without relaxing HTML
sanitization. BUG-607.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/package.json

@@ -7,7 +7,7 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "test": "tsx --test tests/*.test.ts",
+    "test": "tsx --test tests/*.test.ts tests/*.test.tsx",
     "test:db": "tsx --test --test-concurrency=1 tests/database-*.test.ts",
     "test:deployment": "tsx --test tests/health-deployment.test.ts tests/staging-backend-workflows.test.ts tests/staging-image-manifest.test.ts",
     "db:migrate": "node scripts/db-migrate.mjs",