Implementation of ID Code import functionality

[sababak]

Summary

This PR introduces Python code file functionality for SAS Intelligent Decisioning, it include ID code format validation, file import capabilities, and automated dependency detection.

New Features

Main methods

• write_id_code_file() method: Uploads a python code file to Viya file service, optionally validate code formatting, create an ID Code file linked to uploaded file
• validate_id_code() method: Validates Python code against SAS Intelligent Decisioning requirements

Code Validation System

• validate_id_code() method: Validates Python code against SAS Intelligent Decisioning requirements
• validate_code parameter: Optional boolean to disable validation (default: True)
• Syntax validation: Automatic Python syntax checking
• Structure validation: Ensures required execute function and proper docstrings

File Import Capabilities

• Code support: Accepts pathlib.Path objects, file path strings, or code passed in as a string
• Automatic file reading: Reads content from .py files when paths provided
• Path resolution: Detects file paths vs. code strings
• Error handling: Graceful handling of invalid paths

📋 Docstring Validation

• Output validation: Ensures 'Output:' docstring matches return statements
• Dependency validation: Validates 'DependentPackages:' docstring
• Variable consistency: Matches output docstring variables with actual returns (ensures that docstring and all return statement all contain the same amount of variables)

🔍 Dependency Detection

• Import analysis: Parses Python AST to detect imported packages
• Standard library filtering: Excludes Python built-in modules
• Package mapping: Handles import-to-install name conversions

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Codecov Report

❌ Patch coverage is 96.25000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.53%. Comparing base (973fa82) to head (ea01611).
⚠️ Report is 12 commits behind head on master.

Files with missing lines	Patch %	Lines
src/sasctl/pzmm/code_file.py	97.22%	2 Missing ⚠️
src/sasctl/_services/files.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #226      +/-   ##
==========================================
+ Coverage   64.26%   64.53%   +0.26%     
==========================================
  Files          57       58       +1     
  Lines        6286     6339      +53     
==========================================
+ Hits         4040     4091      +51     
- Misses       2246     2248       +2     

Flag	Coverage Δ
integration	64.53% <96.25%> (+0.26%)	⬆️
unit	64.53% <96.25%> (+0.26%)	⬆️

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