Refactor: Properly type progress_task decorator to eliminate type: ignore comments

[MaKaNu]

Problem

The progress_task decorator in tipi/core/permanences.py returns Callable[..., Callable[..., Any]], which causes mypy to report no-any-return errors when using it.

Currently we have # type: ignore[no-any-return] comments in tipi/core/processes.py (lines 113, 134, 155) to suppress these warnings.

Proposed Solution

Update progress_task to use TypeVar and ParamSpec for proper generic typing:

from typing import TypeVar, ParamSpec

P = ParamSpec("P")
R = TypeVar("R")

def progress_task(self, task_name: str, visible: bool = True) -> Callable[[Callable[P, R]], Callable[[int], R]]:
    ...

This would:

1. Preserve the decorated function's return type
2. Eliminate the need for type: ignore comments
3. Provide better IDE support and type checking

Files Affected

[permanences.py] - Update decorator signature
[processes.py] - Remove [type: ignore] comments after fix

Additional Context

A [ProgressTaskCallable] Protocol was added to document the expected interface:

This can potentially be removed or repurposed once the decorator is properly typed.