merge: incorporate community profile files (CODEOWNERS, PR template, .gitattributes, CONTRIBUTING.md)

Author: mrdavearms

.gitattributes

@@ -0,0 +1,20 @@
+# Auto-detect text files and normalise line endings
+* text=auto
+
+# Force LF for source files (consistent across Windows/macOS)
+*.py text eol=lf
+*.md text eol=lf
+*.yml text eol=lf
+*.yaml text eol=lf
+*.spec text eol=lf
+*.txt text eol=lf
+*.json text eol=lf
+*.sh text eol=lf
+
+# Binary files — no line-ending conversion
+*.png binary
+*.ico binary
+*.icns binary
+*.pdf binary
+*.exe binary
+*.dmg binary

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# Default owner for all files
+* @mrdavearms

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,11 @@
+## What changed
+
+<!-- Brief description of the change -->
+
+## Checklist
+
+- [ ] `pytest` passes locally
+- [ ] Tested on Windows
+- [ ] Tested on macOS (if UI changes)
+- [ ] No PDF files or student data committed
+- [ ] CHANGELOG.md updated (if user-facing change)

CONTRIBUTING.md

@@ -0,0 +1,23 @@
+# Contributing
+
+Thanks for your interest in Bulk PDF Generator! This is a solo project maintained by a working school principal, so turnaround may vary.
+
+## Reporting bugs or requesting features
+
+The best way to contribute is through [GitHub Issues](https://github.com/mrdavearms/bulk-pdf-extractor-and-generator/issues). Please use the provided templates — they help me understand your environment and reproduce the problem.
+
+## Contributing code
+
+If you'd like to submit a pull request:
+
+1. Fork the repository
+2. Create a feature branch from `main`
+3. Make your changes
+4. Run `python -m pytest tests/ -v` and ensure all tests pass
+5. Submit a PR against `main`
+
+Please keep changes focused — one feature or fix per PR.
+
+## Privacy reminder
+
+**Never commit PDF files or spreadsheets containing real student data.** Use sample/dummy data for testing.