v0.1.12

Lets a grpcws server close the WebSocket when its stream ends, and drop
clients that stop reading. massrelay needs both to evict slow consumers
(issue 47). It also fixes a server connection that outlived a clean client
close by up to the pong timeout, and a TS client bundle that imported nothing
(issue 46). The new options all default to off.

Added

• grpcws.ConnOptions, embedded in all three stream handlers:
  CloseOnStreamEnd sends a 1000 close frame after stream_end and ends the
  connection, CloseGracePeriod (default 2s) bounds how long a stuck client
  can hold the socket after that, and WriteTimeout sets a per-write
  deadline (PR 48).
• http.BaseConn.WriteTimeout and http.BaseConn.CloseAfterSend, plus a
  Close variant on OutgoingMessage (PR 48).
• TS client: GRPCWSClient and TypedGRPCWSClient report streamEnded in
  onClose, so an app can tell a normal end from a dropped connection. The
  mock gains simulateStreamEnd() and simulateClose(code, reason) (PR 48).

Changed

• TS client: onClose receives CloseInfo (code, reason, wasClean).
  Existing () => {} handlers still type-check, but code that calls
  onClose() directly needs an argument (PR 48).
• A failed write on BaseConn now closes the socket. Before, the Writer
  stopped but the read loop kept a connection open that could no longer send
  (PR 48).
• Any close or read error now ends WSHandleConn, even when OnError
  returns nil. The reader has already stopped by then, so carrying on only
  meant waiting for the pong timeout (PR 48).

Fixed

• WSHandleConn now ends when the client closes cleanly (code 1000) or the
  server closes the socket. Both surfaced as net.ErrClosed, which
  conc.Reader reports only on ClosedChan, so the loop waited for the pong
  timeout (PR 48).
• TS client: a browser bundle of @panyam/servicekit-client imported nothing.
  The browser field named the IIFE script build, which has no exports, and
  esbuild prefers that field over module for a browser, so every named
  import was undefined. The package now has an exports map whose
  import, browser and default conditions name dist/index.mjs and whose
  require names dist/index.js. The script build moved to the unpkg and
  jsdelivr fields, and ./dist/* and ./package.json stay reachable by
  path. CI now builds the client before its tests (issue 46, PR 49).