fix: tools/bugreport launcher finds a Python 3.8+ itself and never starts a Store alias (#166)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SnAJ7Z3CpVD3PRbN73QtU2

Files changed:
- .gitea/workflows/ci.yml
- CHANGES.md
- INSTALL.md
- VERSION
- instructions/bug-report.md
- tools/README.md
- tools/bugreport
- tools/bugreport.ps1
- tools/bugreport.py
- tools/chemenu/tests/test_bugreport_launcher.py
- tools/chemenu/tests/test_instructions_shell.py
- tools/chemenu/tests/test_portability.py

tools/bugreport.py

@@ -6,10 +6,15 @@ Runs on the base Python with the standard library only, and imports nothing from
 - no venv, a broken package, a Python that is too old. Syntax stays at Python
 3.8 so that even an old interpreter can still produce a report.
 
-    python tools/bugreport.py [--chronology FILE] [--transcript FILE]...
-                              [--session ID | --no-trace] [--titles]
-                              [--pseudonymise] [--root DIR] [--out DIR]
-    python tools/bugreport.py --bundle DIR --candidates FILE
+    tools/bugreport [--chronology FILE] [--transcript FILE]...
+                    [--session ID | --no-trace] [--titles]
+                    [--pseudonymise] [--root DIR] [--out DIR]
+    tools/bugreport --bundle DIR --candidates FILE
+
+`tools/bugreport` (and `tools/bugreport.ps1` under PowerShell) finds a Python 3.8
+or newer and runs this file with it, skipping the Microsoft Store's aliases that
+`python3` resolves to on Windows. Started directly - `<python> tools/bugreport.py`
+- it works the same, with whichever interpreter was named.
 
 The bundle is `<out>/bugreport-<UTC stamp>/` plus a zip beside it, in four
 layers: the environment, the stack, what `wikitool` prints (if it starts), and
@@ -1188,7 +1193,7 @@ def make_zip(bundle_dir: Path, archive: Path) -> None:
 
 def parse_args(argv):
     parser = argparse.ArgumentParser(
-        prog="bugreport.py",
+        prog="tools/bugreport",
         description="Collect a bug-report bundle. Removes secrets, keeps page titles out "
         "unless --titles is given, uploads nothing.",
     )
@@ -1330,7 +1335,7 @@ def _collect(args, root: Path, out: Path, stamp: str, bundle_dir: Path) -> int:
         print("Mapping: %s" % _sibling(bundle_dir, ".pseudonyms.json"))
         print("Review:  %s" % _sibling(bundle_dir, ".review.txt"))
         print("Both hold originals and stay on this machine: never share them.")
-        print("Stage 2: python3 tools/bugreport.py --bundle %s --candidates <file>" % bundle_dir)
+        print("Stage 2: tools/bugreport --bundle %s --candidates <file>" % bundle_dir)
     print()
     print(STAGE1_NOTICE if pz is not None else PRIVACY_NOTICE)
     return 0