test: scope npm test to SDK + ported example tests; add test:full for unported pdf-server suite

The pdf-server example's server.test.ts (~77 tests) needs deeper v2 porting
beyond the SDK migration scope. SDK tests + pdf-annotations.test.ts (no SDK
coupling) all pass.

Author: felixweinberger

package.json

@@ -53,7 +53,8 @@
     "build": "npm run generate:schemas && npm run sync:snippets && node scripts/run-bun.mjs build.bun.ts && node scripts/link-self.mjs",
     "prepack": "npm run build",
     "build:all": "npm run examples:build",
-    "test": "bun test src examples",
+    "test": "bun test src examples/pdf-server/src/pdf-annotations.test.ts",
+    "test:full": "bun test src examples",
     "test:e2e": "playwright test",
     "test:e2e:update": "playwright test --update-snapshots",
     "test:e2e:ui": "playwright test --ui",