fix(telegram): bound stale-client cleanup and add Windows CLOSE-WAIT live probes (#87057)

Follow-ups on top of the salvaged commits from PR #87111 (@HexLab98) and
PR #87265 (@JoaoMarcos44):

- keep main's #92991 stall watchdog (150s progress-based) as the single
  steady-state liveness probe instead of adding a second overlapping one
- orphaned-client aclose() cleanup uses the wall-clock thread deadline and
  is tracked in _background_tasks so a wedged close can neither hang nor
  leak one task per reconnect attempt (from #87265's review findings)
- merge #87265's no-keepalive getUpdates pool (max_keepalive_connections=0)
  with #87111's TCP-keepalive socket options on all transports
- add tests/gateway/test_telegram_closewait_windows_live.py: live probes
  against a real half-closing HTTP server, skipif non-win32, wired into
  the on-demand windows-venv-e2e lane (wine2e/**)

.github/workflows/windows-venv-e2e.yml

@@ -50,7 +50,7 @@ jobs:
       - name: Install dependencies
         uses: ./.github/actions/retry
         with:
-          command: uv sync --locked --python 3.11 --extra dev
+          command: uv sync --locked --python 3.11 --extra dev --extra messaging
 
       - name: Run venv-holder live E2E
         shell: bash
@@ -61,3 +61,11 @@ jobs:
             tests/hermes_cli/test_taskkill_identity_windows_live.py \
             tests/hermes_cli/test_git_trampoline_windows_live.py \
             -o addopts= -v -p no:cacheprovider
+
+      - name: Run Telegram CLOSE-WAIT reconnect live E2E (#87057)
+        shell: bash
+        run: |
+          set -uo pipefail
+          uv run --no-sync python -m pytest \
+            tests/gateway/test_telegram_closewait_windows_live.py \
+            -o addopts= -v -p no:cacheprovider