Please address the comments from this code review:

## Overall Comments
- Explicitly convert sysconfig.get_config_var("Py_GIL_DISABLED") to a boolean (e.g. bool(...) or compare to 1) to avoid storing non‐boolean values like '1' in marker_env.
- Consider centralizing the free_threading detection logic instead of duplicating it in both script_strings.py and system_env.py to keep them in sync.

## Individual Comments

### Comment 1
<location> `src/poetry/utils/env/script_strings.py:89` </location>
<code_context>
     ),
     "interpreter_version": interpreter_version(),
     "sysconfig_platform": sysconfig.get_platform(),
+    "free_threading": sysconfig.get_config_var("Py_GIL_DISABLED") or False,
 }

</code_context>

<issue_to_address>
**suggestion:** Explicitly cast Py_GIL_DISABLED to bool for clarity.

Casting to bool ensures consistent boolean output, regardless of the original type returned by sysconfig.get_config_var.

```suggestion
    "free_threading": bool(sysconfig.get_config_var("Py_GIL_DISABLED")),
```
</issue_to_address>

### Comment 2
<location> `src/poetry/utils/env/system_env.py:77` </location>
<code_context>
     ),
     "interpreter_version": interpreter_version(),
     "sysconfig_platform": sysconfig.get_platform(),
+    "free_threading": sysconfig.get_config_var("Py_GIL_DISABLED") or False,
 }

</code_context>

<issue_to_address>
**suggestion:** Explicitly cast Py_GIL_DISABLED to bool for consistency.

Casting to bool prevents unexpected behavior if Py_GIL_DISABLED is not strictly boolean.

```suggestion
            "free_threading": bool(sysconfig.get_config_var("Py_GIL_DISABLED")),
```
</issue_to_address>

### Comment 3
<location> `src/poetry/utils/env/virtual_env.py:61` </location>
<code_context>
    def get_supported_tags(self) -> list[Tag]:
        from packaging.tags import compatible_tags
        from packaging.tags import cpython_tags
        from packaging.tags import generic_tags

        python = self.version_info[:3]
        interpreter_name = self.marker_env["interpreter_name"]
        interpreter_version = self.marker_env["interpreter_version"]
        sysconfig_platform = self.marker_env["sysconfig_platform"]
        free_threading = self.marker_env["free_threading"]

        abis: list[str] | None = None
        if interpreter_name == "pp":
            interpreter = "pp3"
        elif interpreter_name == "cp":
            interpreter = f"{interpreter_name}{interpreter_version}"
            if free_threading:
                abis = [f"{interpreter}t"]
        else:
            interpreter = None

        # Why using sysconfig.get_platform() and not ...
        # ... platform.machine()
        #  This one is also different for x86_64 Linux and aarch64 Linux,
        #  but it is the same for a 32 Bit and a 64 Bit Python on Windows!
        # ... platform.architecture()
        #  This one is also different for a 32 Bit and a 64 Bit Python on Windows,
        #  but it is the same for x86_64 Linux and aarch64 Linux!
        platforms = None
        if sysconfig_platform != sysconfig.get_platform():
            # Relevant for the following use cases, for example:
            # - using a 32 Bit Python on a 64 Bit Windows
            # - using an emulated aarch Python on an x86_64 Linux
            output = self.run_python_script(GET_PLATFORMS)
            platforms = json.loads(output)

        return [
            *(
                cpython_tags(python, abis=abis, platforms=platforms)
                if interpreter_name == "cp"
                else generic_tags(platforms=platforms)
            ),
            *compatible_tags(python, interpreter=interpreter, platforms=platforms),
        ]

</code_context>

<issue_to_address>
**issue (code-quality):** We've found these issues:

- Move assignments closer to their usage ([`move-assign`](https://docs.sourcery.ai/Reference/Default-Rules/refactorings/move-assign/))
- Simplify conditional into switch-like form [×2] ([`switch`](https://docs.sourcery.ai/Reference/Default-Rules/refactorings/switch/))
</issue_to_address>