Wave 2 integration: deps manifest (sigma, graphology, puppeteer-core), test-run emission guard

package.json

@@ -11,7 +11,7 @@
 		"ingest": "tsx src/cli.ts ingest",
 		"graph": "tsx src/cli.ts graph",
 		"what-next": "tsx src/cli.ts what-next",
-		"test": "tsx --test tests/*.test.ts tests/*.test.tsx",
+		"test": "NODE_ENV=test tsx --test tests/*.test.ts tests/*.test.tsx",
 		"typecheck": "tsc --noEmit"
 	},
 	"dependencies": {
@@ -31,6 +31,8 @@
 		"clsx": "^2.1.1",
 		"cmdk": "^1.1.1",
 		"embla-carousel-react": "^8.6.0",
+		"graphology": "^0.26.0",
+		"graphology-layout-forceatlas2": "^0.10.1",
 		"katex": "^0.16.47",
 		"linkedom": "^0.18.13",
 		"lucide-react": "^1.33.0",
@@ -40,11 +42,13 @@
 		"nanoid": "^6.0.1",
 		"next": "^16.3.2",
 		"next-themes": "^0.4.6",
+		"puppeteer-core": "^25.8.0",
 		"radix-ui": "^1.6.7",
 		"react": "^19.2.8",
 		"react-dom": "^19.2.8",
 		"react-jsx-parser": "^2.4.1",
 		"remark-breaks": "^4.0.0",
+		"sigma": "^3.0.3",
 		"streamdown": "^2.5.0",
 		"tailwind-merge": "^3.6.0",
 		"tokenlens": "^1.3.1",