docs: fix outdated documentation (automated weekly drift check)

[Miyamura80]

This PR fixes outdated documentation identified during a weekly drift check.

Changes:

1. CLAUDE.md: Corrected global_config attribute access pattern for LLM default model.
2. manual_docs/branch_comparison.md: Updated feature matrix to reflect missing pytest-asyncio in main branch.
3. docs/content/docs/index.mdx: Replaced nonexistent make setup command with uv sync and fixed incorrect file path for main.py.

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PR created automatically by Jules for task 17096332281359517951 started by @Miyamura80

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[greptile-apps]

Greptile Summary

This PR corrects three documentation drift issues identified during automated weekly checks:

• CLAUDE.md: Fixed the config attribute access pattern from global_config.llm_config.default_model to global_config.default_llm.default_model to match the actual structure in common/global_config.yaml
• docs/content/docs/index.mdx: Replaced nonexistent make setup command with uv sync and corrected the file path from src/main.py to main.py (the actual location in the repository)
• manual_docs/branch_comparison.md: Updated the feature comparison matrix to accurately reflect that pytest-asyncio is missing from the main branch (❌) but present in the dev branch (✅)

All changes are purely documentation corrections with no code modifications. The fixes align with actual codebase structure and available commands.

Confidence Score: 5/5

• This PR is safe to merge with no risk
• All changes are documentation-only fixes that correct outdated references to match the actual codebase. No functional code is modified, and all corrections have been verified against the actual repository structure.
• No files require special attention

Important Files Changed

Filename	Overview
CLAUDE.md	Fixed incorrect config path from llm_config.default_model to default_llm.default_model
docs/content/docs/index.mdx	Corrected nonexistent make setup to uv sync and fixed path from src/main.py to main.py
manual_docs/branch_comparison.md	Updated feature matrix to reflect pytest-asyncio missing from main branch

_{Last reviewed commit: 8190935}