Automate generate_readme.py: remove manual input, fix file listing, restore CI workflow

[devin-ai-integration]

Summary

Converts generate_readme.py from an interactive script (requiring 3 input() calls) into a fully automated script that generates README.md without any manual input.

Key changes:

• Removed all input() calls — project name is auto-detected from the directory name; description and author are set as constants.
• Fixed file listing — uses os.path.dirname(os.path.abspath(__file__)) so the script works correctly regardless of the current working directory. The old version used os.listdir() which depended on cwd and could list incorrect files.
• Sorted file listing and added an IGNORED_NAMES set to exclude generated/hidden files (.git, .github, __pycache__, etc.).
• Fixed usage command — changed python main.py → python ocr_app.py to match the actual entry point.
• Restored GitHub Actions workflow (.github/workflows/generate-readme.yml) so the README is automatically regenerated on every push to main.

Review & Testing Checklist for Human

• Run python generate_readme.py locally and verify the generated README.md lists all expected files (currently: Screenshot 2025-05-13 183426.png, diagram.png, ocr_app.py, requirements.txt)
• Verify the GitHub Actions workflow triggers on the next push to main and successfully commits an updated README

Notes

• The script now uses structured functions (list_project_files, generate_readme) instead of top-level procedural code, making it easier to test and extend.
• The IGNORED_NAMES set can be expanded if new generated/hidden files are added to the repo in the future.

Link to Devin session: https://app.devin.ai/sessions/85a46d32a67645a086fc02185942f999
Requested by: @liohnerd16

[devin-ai-integration]

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