first draft of cla + issue/pr templates

.gitea/issue_template.md

@@ -0,0 +1,22 @@
+Thank you very much for your interest in TetGen! Reporting your issue here helps to improve the code.
+
+### Legal
+By opening this issue, you agree to the terms of the contributor license agreement stated in [CONTRIBUTING.md](https://codeberg.org/TetGen/TetGen/src/branch/main/CONTRIBUTING.md)
+
+### Kind of issue (bug, feature request...):
+
+### Issue description:
+
+### Expected behavior: 
+
+### Observed behavior: 
+
+### Environment:
+   - TeGen version:
+   - OS (e.g. MacOS 14):
+   - Architecture (e.g. x64, aarch64):
+   - Compiler vendor + version:
+
+### Minimum working example:
+
+Please attach input data which allow to reproduce the problem.

.gitea/pull_request_template.md

@@ -0,0 +1,10 @@
+Thank you very much for helping to improve TetGen!
+
+### Legal:
+By opening this pull request, you agree to the terms of the contributor license agreement stated in [CONTRIBUTING.md](https://codeberg.org/TetGen/TetGen/src/branch/main/CONTRIBUTING.md)
+
+### Pull request description:
+
+
+### Test data:
+Please provide input data which help to test the feature implemented in the pull request.

CONTRIBUTING.md

@@ -0,0 +1,45 @@
+# Notes
+- Contributors should be aware that under this CLA, commercial licenses for versions of TetGen which include their contributions under the MIT license be may provided to customers by the maintainers or their contract partners
+# Contributor License Agreement (CLA)
+
+By submitting a contribution (including but not limited to code, documentation, or other materials) via a pull request, issue, or other means, Contributor agrees to the following terms:
+
+## Grant of License
+Contributor hereby grants to the Project and its maintainers a perpetual, worldwide, non-exclusive, transferable, royalty-free, irrevocable license under all of Contributor's copyright and patent rights to:
+- Use, reproduce, modify, distribute, and publicly display/perform the contribution under the GNU Affero General Public License v3 (AGPLv3) or any later version;
+- Additionally, sublicense the contribution under the MIT License (included below)
+
+## MIT License Grant
+Contributor agrees that their contribution may be made available under the following MIT License terms, in addition to AGPLv3:
+
+```text
+Copyright (c) [Year] [Contributor's Name]  
+
+Permission is hereby granted, free of charge, to any person obtaining a copy  
+of this software and associated documentation files (the "Software"), to deal  
+in the Software without restriction, including without limitation the rights  
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell  
+copies of the Software, and to permit persons to whom the Software is  
+furnished to do so, subject to the following conditions:  
+
+The above copyright notice and this permission notice shall be included in all  
+copies or substantial portions of the Software.  
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE  
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER  
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,  
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE  
+SOFTWARE.  
+```
+
+## Representations and Warranties
+Contributor represents that:
+- They are legally entitled to grant the above licenses;
+- Their contributions are original works and do not violate third-party rights;
+- They are not required to grant licenses under third-party terms (e.g., employer agreements).
+
+## No Obligation
+The Project is under no obligation to accept or use any contribution.
+

README.md

@@ -28,3 +28,8 @@ It is planned to resume active development of TetGen in cooperation between the
 TetGen versions developed at WIAS are distributed under a dual licensing scheme.  As an alternative to the use of TetGen under the AGPLv3 license, consider the option to obtain a commercial license for a fee.  These licenses are offered by the Weierstrass Institute for Applied Analysis and Stochastics (WIAS). As a rule, licenses are provided "as-is", unlimited in time for a one time fee.  Please send corresponding requests to: `tetgen at wias-berlin.de`.  Please do not forget to include some description of your company and the realm of its activities.
 
 Due to the change of affiliation of Hang Si, details about the continuation of this dual licensing scheme for future versions of TetGen will be announced in the future. Please feel free to contact us if you have any questions.
+
+## Contributing
+
+By submitting a contribution (including but not limited to code, documentation, or other materials) via a pull request, issue, or other means, a contributor agrees to the terms of the contributor license agreement stated in [CONTRIBUTING.md](https://codeberg.org/TetGen/TetGen/src/branch/main/CONTRIBUTING.md)
+