Fix: Stabilize setup.bat (encoding issues, Python detection, and venv…

[Yagasaki7K]

🔍 Description

This PR improves the reliability and cross-environment stability of setup.bat.

It resolves execution errors such as:

'is not recognized as an internal or external command'

The root causes were identified as:

• UTF-8 with BOM encoding conflicts in CMD
• Fragile Python version parsing logic
• Unicode characters breaking command parsing
• Inconsistent virtual environment activation
• ESC sequence capture instability for ANSI colors

The updated script maintains the original behavior and UX while making execution deterministic and safe across Windows 10/11 environments.

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🛠️ Changes Made:

• Replaced fragile Python version parsing with launcher-based detection (py -3.x)
• Added fallback detection for default python in PATH
• Enforced explicit activate.bat call for virtual environment activation
• Removed Unicode symbols from title to prevent locale parsing issues
• Stabilized ANSI escape capture for color support
• Simplified venv recreation logic
• Improved error handling for environment creation and dependency installation
• Hardened startup shortcut creation flow

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✅ Pre-Push Checklist:

• I have updated pyproject.toml with any new dependencies.
• I have run setup.bat and verified the installation is successful.
• I have verified that start_zyron.bat launches without module errors.
• I have updated README.md if new commands or features were added.
• I have linked this PR to an existing Issue (if applicable).

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📥 Screenshots/Gifs (If UI changes):

N/A – No UI changes. Script stability improvements only.

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Maintaining Zyron stability is our priority!

Issue: #50

[Surajkumar5050]

Thank you for the concern & fix :)
checking it now in my local setup...

[Surajkumar5050]

checked , & its working so nicely . thanks brother :)