feat: exposing a reconnection method

[germa89]

Description

Expose a reconnection method

Issue linked

NA

Checklist

• I have visited and read Develop PyMAPDL.
• I have tested my changes locally
• I have added necessary documentation or updated existing documentation.
• I have followed the PyMAPDL coding style guidelines.
• I have added appropriate unit tests that also ensure the minimal coverage criteria.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have marked this PR as draft if it is not ready to be reviewed yet.
• I have made sure that the title of my PR follows Commit naming conventions (e.g. feat: adding new MAPDL command)

Summary by Sourcery

Extract connection logic from init and provide a dedicated reconnect_to_mapdl() API to allow re-establishing a stopped or crashed MAPDL gRPC session without relaunching the instance.

New Features:

• Expose a public reconnect_to_mapdl() method to manually re-establish a gRPC connection

Enhancements:

• Refactor connection logic into a new internal _connect_to_mapdl() helper

[ansys-reviewer-bot]

Thanks for opening a Pull Request. If you want to perform a review write a comment saying:

@ansys-reviewer-bot review

[sourcery-ai]

Reviewer's Guide

Refactored the gRPC connection setup by extracting the multi_connect logic into a private helper and exposing a new public reconnect_to_mapdl API that can re-establish dropped connections with an optional timeout, replacing the inline connection code in the constructor.

File-Level Changes

Change	Details	Files
Extracted connection logic into a private helper	Moved the try/except block of _multi_connect from init into a new _connect_to_mapdl method Retained post-mortem error checks and debug logging in the extracted helper	src/ansys/mapdl/core/mapdl_grpc.py
Added and wired up the public reconnect_to_mapdl method	Introduced reconnect_to_mapdl with optional timeout and default fallback to self._timeout Replaced inline connection calls in init with a call to reconnect_to_mapdl	src/ansys/mapdl/core/mapdl_grpc.py

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[sourcery-ai]

Hey @germa89 - I've reviewed your changes - here's some feedback:

• Replace if not timeout: with an explicit if timeout is None: check so that a zero timeout can be handled correctly.
• Add explicit -> None return type annotations to both _connect_to_mapdl and reconnect_to_mapdl for consistency with the existing type hints.
• Consider returning a status flag or raising a custom exception in reconnect_to_mapdl to clearly signal success or failure to callers instead of implicit None.

Here's what I looked at during the review

• 🟡 General issues: 1 issue found
• 🟢 Testing: all looks good
• 🟢 Documentation: all looks good

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.26%. Comparing base (cce7ad1) to head (49a4ff3).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3933      +/-   ##
==========================================
+ Coverage   88.25%   88.26%   +0.01%     
==========================================
  Files         187      187              
  Lines       14935    14941       +6     
==========================================
+ Hits        13181    13188       +7     
+ Misses       1754     1753       -1     

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[germa89]

@pyansys-ci-bot LGTM.

[pyansys-ci-bot]

✅ Approving this PR because germa89 said so in here 😬