fix(gateway): detach pending_watchers batch + normalize LRU caches + align test fixtures + AUTHOR_MAP

Self-review follow-up on top of the salvaged perf fixes:

- gateway/run.py (both watcher-drain sites): the salvaged O(n^2) fix
  (#32708) replaced `while pending_watchers: pop(0)` with iterate-then-
  `watchers.clear()`, but `watchers` aliased the registry's live list.
  A watcher appended by a concurrent session during the `await
  asyncio.sleep(0)` yield would be cleared without ever being scheduled.
  Detach the batch atomically (`pending_watchers = []`) before iterating.

- gateway/platforms/bluebubbles.py: normalize the salvaged _guid_cache
  LRU (#30523) to match feishu/codebase precedent — module-level
  `_GUID_CACHE_SIZE` constant, `while len > cap`, and drop the redundant
  post-insert `move_to_end` (a fresh insert is already most-recent).

- gateway/platforms/feishu.py: drop the same redundant post-insert
  `move_to_end` from the salvaged _message_text_cache LRU (#23706).

- scripts/release.py: add AUTHOR_MAP entries for the salvaged commits'
  authors (amathxbt #22155, ErnestHysa #32636/#32708) so the contributor
  audit passes when these commits land on main.

- tests/tools/test_tool_output_limits.py: autouse fixture resets the new
  module-level limits cache between tests.

- tests/gateway/test_feishu.py: hand-built adapter fixture seeded
  _message_text_cache as a plain dict; it's now an OrderedDict, so the
  fixture type had to match.

scripts/release.py

@@ -1406,6 +1406,9 @@ AUTHOR_MAP = {
     "peter.yuqin@gmail.com": "WuKongAI-CMU",  # PR #10082 (reject symlinked audio inputs)
     "sunil.nitie@gmail.com": "Sunil123135",  # PR #31031 (Windows Docker Desktop compose)
     "weichangyuwcy@gmail.com": "ChyuWei",  # PR #30987 (TUI TTS env var on voice off)
+    # batch salvage PR #35758 (perf micro-fixes)
+    "116212274+amathxbt@users.noreply.github.com": "amathxbt",  # PR #22155 (cache tool_output_limits)
+    "takis312@hotmail.com": "ErnestHysa",  # PRs #32636/#32708 (MCP asyncio.sleep + O(n^2) watcher drain)
 }