[knowledgecode]

Summary

Clears the Vite warning in the test run, removes config left over from older setups, fixes long-standing client/server bugs, and rewrites the tests so they actually check what they claim to. Bumps the version to 0.7.0 because disconnect() now rejects promises that used to stay pending forever.

Bug fixes

• Synchronous handler errors - a bind() handler that threw synchronously escaped the promise chain, so the request never got a reply. The error is now sent back as an error reply.
• Pending work on disconnect() - pending req() calls and a connect() still waiting for its ack were never settled. They are now rejected with Disconnected..
• Reconnect after disconnect() - calling disconnect() before the ack arrived left the port open, so a late ack re-established the connection. The port is now always closed.
• unsubscribe() - the server was never told, so it kept publishing to the client. The client now sends unsubscribe once a topic has no listeners left. The server already handled this packet, so mixing old and new clients and servers is safe.

API / types

• send(topic, data?) - data is now optional, matching req() and publish().
• _listener / _postMessage are now private, so they are no longer in the published index.d.ts.

Tooling

• Dev dependencies updated: Vitest 5, ESLint 10.13, Playwright 1.64, Rollup 4.64. The allowScripts pins match the lockfile again.
• vitest.config.js uses import.meta.dirname. This removes the Vite native config loader warning.
• Removed .npmignore. It had no effect because package.json has a files list.
• .vscode and CLAUDE.md are now in .gitignore, and .vscode is no longer tracked.
• New npm run typecheck (tsc --noEmit), also run in CI. Before this, CI never type-checked.

Tests

• The fixture servers bind greet, which publishes before it replies. Subscribe tests now await req('greet') instead of a timer and check the data they receive. Conditional assertions were made unconditional, workers are terminated after each test, and the 500 ms teardown delays are gone (suite time about 6.6 s -> 0.65 s).
• New tests/same_context_test.ts covers each fix above. Its four regression tests fail on the code before the fixes.

Behavior changes for users

• disconnect() now rejects a pending connect() / req() with Error('Disconnected.'). Code that does not handle that rejection will start seeing unhandled rejections.
• Code that called _listener / _postMessage will no longer type-check.

Verification

Every commit passes npm run lint, tsc --noEmit and npm test on its own (28 tests, then 34 once the regression tests are added). On the head commit, npm run build succeeds, and npm pack --dry-run lists the same six files as before.