v0.5.4 — Accept fragmented chunked responses

Valid chunked HTTP responses are no longer reported as premature closes when their final marker is split across multiple socket events. This includes 3+1+1 splits and empty data events. Genuinely truncated responses still fail.

The corrected detector ships in both proxy entry bundles, allowing wrappers to consume the package without applying their own compiled-bundle workaround.

After upgrading, sign in once again. OAuth credentials are stored by proxy version. Node.js 18 or newer is required.

Fix by @Michelleeby; release preparation by @galatanovidiu.

Full comparison: v0.5.3...v0.5.4