fix: update source-reading tests that drifted from the code

- test_transport_contracts: CreateGroupPage was refactored into a
  routing wrapper; assertions now read CreateGroupFormSimple
- test_task_lifetime: _spawn now uses an _on_done wrapper instead of
  a bare self._tasks.discard callback; assertion checks both parts
- test_video_buffer_ceiling: target the real updateend handler, not
  the settled() utility; add awaitingInitRef to the MSE harness scope
- test_video_seek: silence debug console.log in window_leak harness
  so it does not pollute the JSON output

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/packages/meshbay-hub/tests/harness/mse_harness.mjs b/packages/meshbay-hub/tests/harness/mse_harness.mjs
index 437a542..91018ef 100644
--- a/packages/meshbay-hub/tests/harness/mse_harness.mjs
+++ b/packages/meshbay-hub/tests/harness/mse_harness.mjs
@@ -117,6 +117,7 @@ const queueRef = { current: [] };
 const appendingRef = { current: false }, endedRef = { current: false };
 const outstandingRef = { current: 0 }, lastPokeRef = { current: 0 };
 const quotaRef = { current: 0 }, stalledRef = { current: false };
+const awaitingInitRef = { current: false };
 const transportRef = {
   current: {
     connected: true,
@@ -130,11 +131,13 @@ const transportRef = {
 const fns = new Function(
   'sbRef,videoRef,msRef,queueRef,appendingRef,endedRef,outstandingRef,' +
   'lastPokeRef,transportRef,BUFFER_BEHIND_S,BUFFER_AHEAD_S,QUEUE_HIGH_WATER,' +
-  'CREDIT_KEEPALIVE_MS,STREAM_WINDOW,quotaRef,stalledRef,console,useCallback',
+  'CREDIT_KEEPALIVE_MS,STREAM_WINDOW,quotaRef,stalledRef,awaitingInitRef,' +
+  'console,useCallback',
   src + '\n return {currentRange, bufferedAhead, evictBehind, flushQueue, pump};'
 )(sbRef, videoRef, msRef, queueRef, appendingRef, endedRef, outstandingRef,
   lastPokeRef, transportRef, BUFFER_BEHIND_S, BUFFER_AHEAD_S, QUEUE_HIGH_WATER,
-  CREDIT_KEEPALIVE_MS, STREAM_WINDOW, quotaRef, stalledRef, console, useCallback);
+  CREDIT_KEEPALIVE_MS, STREAM_WINDOW, quotaRef, stalledRef, awaitingInitRef,
+  console, useCallback);
 
 // The player's own `updateend` listener, transcribed — the one part of the
 // component that is a listener rather than a callback, and the place the