fix(ci): biome-format plugin JSON after sync-version

sync-version.js output didn't match biome's preferred JSON formatting
for the plugin.json + marketplace.json arrays, so CI's biome lint
failed on every version bump. Fix:

1. One-shot: reformat the current plugin.json + marketplace.json
2. Permanent: extend the 'version' npm script to run biome format
   after sync-version, so future bumps stay green

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: aid-ninja

.claude-plugin/marketplace.json

@@ -23,13 +23,7 @@
 			"homepage": "https://grainulator.app",
 			"repository": "https://github.com/grainulation/grainulator",
 			"license": "MIT",
-			"keywords": [
-				"research",
-				"wheat",
-				"claims",
-				"evidence",
-				"briefs"
-			],
+			"keywords": ["research", "wheat", "claims", "evidence", "briefs"],
 			"category": "research",
 			"tags": [
 				"research-sprints",

.claude-plugin/plugin.json

@@ -7,9 +7,7 @@
 	},
 	"homepage": "https://grainulator.app",
 	"skills": "./skills/",
-	"agents": [
-		"./agents/grainulator.md"
-	],
+	"agents": ["./agents/grainulator.md"],
 	"mcpServers": "./.mcp.json",
 	"userConfig": {
 		"tips_level": {

package.json

@@ -34,7 +34,7 @@
 		"test:e2e": "GRAINULATOR_SITE_DIR=\"$PWD/site\" npm run e2e:grainulator --prefix ../ranch",
 		"test:all": "npm test && npm run test:e2e",
 		"sync-version": "node scripts/sync-version.js",
-		"version": "node scripts/sync-version.js && git add .claude-plugin/plugin.json .claude-plugin/marketplace.json"
+		"version": "node scripts/sync-version.js && npx --yes @biomejs/biome format --write .claude-plugin/ && git add .claude-plugin/plugin.json .claude-plugin/marketplace.json"
 	},
 	"engines": {
 		"node": ">=20"