improve error raising

To fix this problem, my solution was getting branch names from Github api and checking for matching.
If there is no match, this time check is a tree like this exists.

Previously the default branch name was considered to be "main", which was wrong.
To fix this, dont put the ref param to query and let Github decide default branch.

The formatted error messages that use undefined variables are fixed and their contents are changed.

Fix for issue #35

…of .gitignore file

- Improved the speed of file filtering in `crawl_local_files.py` with folder-level exclusion
- Added `fix_yaml.py` utility for YAML indentation fixes
- Updated `nodes.py` to support up to 20 core abstractions
- add option for no cache.

Feat: Add contents of `.gitignore` to ignore files by default

…orial-Codebase-Knowledge

…tractions

Feat: add openrouter support;  fix: add options for no-cache and max_abstraction_num

adding PocketFlow

add docs/PocketFlow

docker documentation added

…Tutorial-Codebase-Knowledge

fix: add missing import

feat(call_llm): add azure openai code snippet

Add Docker support for local development

fix: update file opening encoding to utf-8-sig to handle files with BOM

- Added timeout=(30, 30) to requests.get for improved network robustness
- Avoid unnecessary recursion into excluded directories to reduce API calls

add timeout to requests and optimize directory traversal