chore: add "v" before version number on badges (#1488)

server/api/registry/badge/[type]/[...pkg].get.ts

···
 
 const badgeStrategies = {
   'version': async (pkgData: globalThis.Packument, requestedVersion?: string) => {
-    const value = requestedVersion ?? getLatestVersion(pkgData) ?? 'unknown'
-    return { label: 'version', value, color: COLORS.blue }
+    const version = requestedVersion ?? getLatestVersion(pkgData) ?? 'unknown'
+    return {
+      label: 'version',
+      value: version === 'unknown' ? version : `v${version}`,
+      color: COLORS.blue,
+    }
   },
 
   'license': async (pkgData: globalThis.Packument) => {

test/e2e/badge.spec.ts

···
 
         expect(response.status()).toBe(200)
         if (type === 'version') {
-          expect(body).toContain('3.12.0')
+          expect(body).toContain('v3.12.0')
         }
       })