test: make both suites pass on Windows

Most of these failed on Windows for reasons that had nothing to do with the
code under test, which is how real Windows defects hid among them:

- Read and write files as UTF-8, and talk to Node in UTF-8. read_text(),
  write_text() and subprocess text=True use the locale codepage, cp1252 on
  Windows: "é", "—" and "→" arrived as "?" or crashed, some sixty tests.
  Calls to PowerShell and schtasks are left alone -- they answer in the
  console codepage.
- Import ESM harness modules by file URL (as_uri): a raw "C:\..." path is not
  a module specifier.
- test_cli_golden: mask the tmp path in its JSON-escaped form, spell it the
  POSIX way, record on Linux, mask the protocol version (the recording had
  failed everywhere since the MNP 4.0 bump) and argparse's version-dependent
  quoting; point USERPROFILE at the tmp home, or `member invite` and
  `operator pair` wrote their codes into the developer's profile.
- test_disk_io_off_loop: expect what a free loop can reach on the platform's
  timer, 15.6 ms on Windows, not an assumed 5 ms.
- test_root_paths_are_operator_only: expect the OS's spelling of the path.
- test_audio_meta_cache: find ffprobe with shutil.which.

Node suite on Windows: 1489 passed, none failed. Hub suite: 3 failures left,
all older than this change (two SQLite concurrency tests, one transfer resume).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/packages/meshbay-hub/tests/test_spa_ordering.py b/packages/meshbay-hub/tests/test_spa_ordering.py
index 087298f..fdedaf8 100644
--- a/packages/meshbay-hub/tests/test_spa_ordering.py
+++ b/packages/meshbay-hub/tests/test_spa_ordering.py
@@ -132,7 +132,7 @@ COMPONENT_FILES = {
 
 def _component(name: str) -> str:
     """The source of one top-level `function Name(...)`, up to the next one."""
-    source = COMPONENT_FILES.get(name, APP).read_text()
+    source = COMPONENT_FILES.get(name, APP).read_text(encoding="utf-8")
     start = source.find(f"\nfunction {name}(")
     if start == -1:
         start = source.find(f"\nexport function {name}(")
@@ -225,7 +225,7 @@ def test_the_uploader_keeps_several_chunks_in_flight():
 
 
 def test_no_caller_waits_for_one_chunk_at_a_time():
-    app = APP.read_text()
+    app = APP.read_text(encoding="utf-8")
     assert "uploadChunk(" not in app, (
         "a per-chunk await is back in the SPA; use transport.uploadFile()")
 
@@ -248,7 +248,7 @@ def test_leaving_a_group_hands_the_transport_over_rather_than_closing_it():
 
 
 def test_signing_out_stops_them():
-    app = APP.read_text()
+    app = APP.read_text(encoding="utf-8")
     logout = app[app.index("    logout: () => {"):]
     logout = logout[:logout.index("navigate('/login')")]
     assert "transfers.reset()" in logout, (
@@ -257,7 +257,7 @@ def test_signing_out_stops_them():
 
 def test_the_files_panel_no_longer_carries_its_own_progress_bars():
     """They moved next to the bell, where they stay visible across the app."""
-    app = APP.read_text()
+    app = APP.read_text(encoding="utf-8")
     for gone in ("setUlState", "setDlState", "dl-bar"):
         assert gone not in app, f"{gone} survived the move to the transfer widget"
 
@@ -270,7 +270,7 @@ def test_a_multi_file_download_waits_for_each_picker():
     meant the first opened a dialog and the rest were rejected — two files
     selected, one file downloaded.
     """
-    app = STATIC.joinpath("files-app.js").read_text()
+    app = STATIC.joinpath("files-app.js").read_text(encoding="utf-8")
     # Anchored on the loop rather than on the markup around it: the toolbar
     # moved from a dropdown to icon buttons and took the old wrapper with it,
     # while the property under test — one picker at a time — did not change.
@@ -289,7 +289,7 @@ def test_links_in_chat_are_built_as_elements_not_markup():
     never HTML, and only for http(s) — otherwise javascript: would be one
     message away from running here.
     """
-    app = STATIC.joinpath("chat-app.js").read_text()
+    app = STATIC.joinpath("chat-app.js").read_text(encoding="utf-8")
     fn = app[app.index("function linkify("):]
     fn = fn[:fn.index("\nfunction ", 1)]
     assert "innerHTML" not in fn and "dangerouslySetInnerHTML" not in fn