Add configuration files and scripts for project standards enforcement

- Introduced .editorconfig for consistent coding styles.
- Added .gitattributes to manage line endings and text attributes.
- Created README.md for Git hooks usage and configuration.
- Implemented pre-commit hook to enforce executable permissions and LF line endings for shell scripts.
- Updated .gitignore to include additional build artifacts and directories.
- Enhanced AGENTS.md and Definition of Done documentation with testing standards.
- Modified reconciliation scripts to include new configuration files and templates.

.gitignore

@@ -1 +1,13 @@
 .build/
+bin/
+dist/
+tmp/
+coverage/
+coverage.out
+*.coverprofile
+*.test
+*.out
+.DS_Store
+Thumbs.db
+.vscode/
+.idea/