Fix Tesla auth workflow, Improve GitHub extension

[Josh-XT]

Working towards fixing the Tesla auth workflow and updating the GitHub extension. The code now has significantly improved handling for indentation-sensitive languages like Python and YAML.

Key improvements to the GitHub extension:

1. Indentation Structure Detection

   • The new _is_indent_sensitive_content() method correctly identifies indentation-sensitive code patterns
   • The implementation checks for Python patterns (like function/class definitions) and YAML patterns

2. Enhanced Pattern Matching

   • The _normalize_code() method now preserves indentation structure with the added indent_sensitive parameter
   • The code properly implements the indentation markers (using IL{level}: prefix) for better comparison

3. Specialized Small Target Handling

   • The new _find_small_target_match() method is properly implemented
   • It correctly uses token-based matching for small code blocks, which is more reliable than general similarity

4. Improved Aggressive Normalization

   • The updated _find_pattern_with_aggressive_normalization() method now properly handles indentation structure
   • It correctly implements different thresholds based on code type and fuzzy matching settings

5. Smart Code Block Indentation

   • The enhanced _indent_code_block() method properly detects and preserves indentation styles
   • It correctly handles spaces vs. tabs and infers the proper spaces-per-level

This should significantly improve the file modification functionality in the "Fix GitHub Issue" command.