refactor: split test suites — test:ci for unit tests, test for all

- Move hermes ACP integration tests to __tests__/integration/
- Add test:ci script to all packages (excludes integration/)
- CI workflow uses test:ci instead of test
- bun test still runs everything (unit + integration)

Refs #510

package.json

@@ -11,6 +11,7 @@
     "typecheck": "bunx tsc --build",
     "format": "biome format --write .",
     "test": "bun run --filter './packages/*' test",
+    "test:ci": "bun run --filter './packages/*' test:ci",
     "changeset": "bunx changeset",
     "version": "bunx changeset version",
     "release": "bun run build && bun test && node scripts/publish-all.mjs"