chore: ship the licence text and require a CLA

.github/workflows/cla.yml

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+# Collects Contributor License Agreement signatures in the pull request and
+# records them in this repository. The signature file lives on its own branch
+# so that the bot never has to push to a protected branch.
+name: CLA
+
+on:
+  issue_comment:
+    types: [created]
+  pull_request_target:
+    types: [opened, closed, synchronize]
+
+permissions:
+  actions: write
+  contents: write
+  pull-requests: write
+  statuses: write
+
+jobs:
+  cla:
+    runs-on: ubuntu-latest
+    steps:
+      - name: CLA Assistant
+        if: (github.event.comment.body == 'recheck' || github.event.comment.body == 'I have read the CLA Document and I hereby sign the CLA') || github.event_name == 'pull_request_target'
+        uses: contributor-assistant/github-action@v2.6.1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          path-to-signatures: 'signatures/v1/cla.json'
+          path-to-document: 'https://github.com/structured-world/coordinode-python/blob/main/CLA.md'
+          branch: 'cla-signatures'
+          # The copyright holder and the project's own automation do not sign.
+          allowlist: 'polaz,sw-release-bot[bot],dependabot[bot],bot*'
+          custom-notsigned-prcomment: 'Thank you for the contribution. Before it can be merged, please read the [Contributor License Agreement](https://github.com/structured-world/coordinode-python/blob/main/CLA.md) and, if you agree, reply to this comment with the sentence below.'
+          custom-pr-sign-comment: 'I have read the CLA Document and I hereby sign the CLA'
+          custom-allsigned-prcomment: 'All contributors have signed the CLA.'

CLA.md

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+# coordinode-python Contributor License Agreement
+
+Version 1.0, 2026-09-05
+
+Thank you for your interest in coordinode-python (the "Project"). This
+agreement records the terms on which you contribute to it. Its purpose is to
+let the Project be distributed under its licence, and under any other terms
+the copyright holder may need for the CoordiNode product family, while you
+keep every right in what you wrote.
+
+Please read it in full before signing. You sign by replying to the CLA bot in
+your pull request with the sentence it asks for; the signature is stored in
+this repository under `signatures/`.
+
+## 1. Definitions
+
+"You" means the individual who submits a Contribution, or, where the
+Contribution is made in the course of employment or on behalf of an entity,
+that entity, in which case the person signing confirms they are authorised to
+bind it.
+
+"Contribution" means any original work of authorship, including source code,
+documentation, tests, configuration and other material, that You intentionally
+submit to the Project for inclusion in it, in any form, including through a
+pull request. It excludes anything You mark conspicuously as "Not a
+Contribution" at the time of submission.
+
+"Copyright Holder" means Dmitry Prudnikov, the copyright holder in the Project
+at the date of this agreement, and any person or entity to whom the copyright
+in the Project is later assigned. A grant made to the Copyright Holder under
+this agreement passes to such a successor without any further act by You.
+
+## 2. Grant of copyright licence
+
+Subject to the terms of this agreement, You grant to the Copyright Holder, and
+to recipients of software distributed by the Copyright Holder, a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright
+licence to reproduce, prepare derivative works of, publicly display, publicly
+perform, sublicense and distribute Your Contributions and such derivative
+works, under any licence terms the Copyright Holder chooses.
+
+## 3. Grant of patent licence
+
+Subject to the terms of this agreement, You grant to the Copyright Holder, and
+to recipients of software distributed by the Copyright Holder, a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as
+stated in this section) patent licence to make, have made, use, offer to sell,
+sell, import and otherwise transfer the Project, where such licence applies
+only to those patent claims licensable by You that are necessarily infringed
+by Your Contribution alone or by combination of Your Contribution with the
+Project to which it was submitted. If any entity institutes patent litigation
+against You or any other entity alleging that Your Contribution, or the Project
+to which You have contributed, constitutes direct or contributory patent
+infringement, then any patent licences granted to that entity under this
+agreement for that Contribution or Project terminate as of the date such
+litigation is filed.
+
+## 4. What You keep
+
+You retain all right, title and interest in Your Contributions. Nothing in
+this agreement transfers copyright to the Copyright Holder or restricts You
+from using, licensing or distributing Your Contributions, alone or as part of
+other work, on any terms You choose.
+
+## 5. What the Copyright Holder promises
+
+(a) Every Contribution accepted into the Project is and remains available
+under the Apache License, Version 2.0, as part of the Project. The Copyright
+Holder will not remove an accepted Contribution from the open-source Project
+in order to offer it only under other terms.
+
+(b) If the copyright in the Project is assigned to a successor, the successor
+takes it subject to this section.
+
+## 6. Your representations
+
+You represent that:
+
+(a) You are legally entitled to grant the licences above. If Your employer or
+another person has rights in intellectual property You create that include
+Your Contributions, You represent that they have waived those rights for the
+Contribution, or that they have authorised You to make the Contribution on
+their behalf, or that they have signed this agreement themselves.
+
+(b) Each of Your Contributions is Your original creation. Where a
+Contribution includes material that is not Your original creation, You
+identify it as such in the submission, together with its source and licence,
+and You have the right to submit it under this agreement.
+
+(c) You will notify the Project if You become aware of any fact that would make
+these representations inaccurate.
+
+## 7. No warranty, no obligation to use
+
+Except for the representations in section 6, You provide Your Contributions
+"as is", without warranty of any kind. The Copyright Holder is under no
+obligation to accept, use or distribute any Contribution.
+
+## 8. Miscellaneous
+
+This agreement is governed by the laws of Romania. It is the entire agreement
+between You and the Copyright Holder concerning Your Contributions and
+supersedes any earlier arrangement on the same subject. If any provision is
+held unenforceable, the remainder stays in force.

CONTRIBUTING.md

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+# Contributing to coordinode-python
+
+Contributions of every kind are welcome: bug reports, features, documentation,
+examples.
+
+## Development setup
+
+```bash
+git clone --recurse-submodules https://github.com/structured-world/coordinode-python.git
+cd coordinode-python
+uv sync
+make test
+```
+
+`make test` regenerates the protobuf stubs and runs the unit suite. Integration
+tests need a running CoordiNode server; see `docker-compose.yml`.
+
+## Pull request process
+
+1. Fork the repository and create a branch (`feat/description` or `fix/description`).
+2. Make the change, with tests.
+3. Make sure `ruff check`, `ruff format --check` and `make test` pass.
+4. Write commit messages in the [Conventional Commits](https://www.conventionalcommits.org/) form.
+5. Open a pull request describing what changed and why.
+
+## Contributor License Agreement (CLA)
+
+Before a first pull request can be merged, you sign the
+[Contributor License Agreement](CLA.md). Signing happens in the pull request:
+a bot posts the request, you reply with the sentence it asks for, and the
+signature is recorded in `signatures/` in this repository. It is a one-time
+step per GitHub account.
+
+In short, the CLA says that you keep the copyright in your contribution, that
+you grant the project's copyright holder (and any successor the copyright is
+assigned to) a perpetual, worldwide, royalty-free, irrevocable licence to use,
+modify, distribute and sublicense it under any terms, and that you are entitled
+to make that grant. The project promises in return that your contribution stays
+available under Apache-2.0 and that you remain free to do anything with your
+own work.
+
+If your employer owns what you write, ask them to confirm they permit the
+contribution before you sign.
+
+## Questions
+
+Open an issue, or write to oss@sw.foundation.

LICENSE

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