Initialize GovOPlaN module seed

AGENTS.md

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+# GovOPlaN Contracts Codex Guide
+
+## Scope
+
+This repository owns the GovOPlaN Contracts platform module seed.
+
+Contract register for renewals, obligations, responsible units, documents, sign-off chains, and vendor or partner references.
+
+## Boundaries
+
+- Depend on kernel contracts from `govoplan-core` and access contracts from `govoplan-access`.
+- Keep domain behavior in this module; expose integration through manifests, capabilities, API routes, events, typed DTOs, and documentation topics.
+- Do not import internals from sibling feature modules. Use optional dependencies and capabilities for cross-module behavior.
+- Keep the seed non-invasive until runtime routes, persistence, and WebUI flows are intentionally designed.
+
+## Local Workflow
+
+Use Gitea issues as the canonical backlog and state log. The shared workflow is installed under `.gitea/`, with labels in `docs/gitea-labels.json`.
+
+Focused verification:
+
+```bash
+PYTHONPATH=src:/mnt/DATA/git/govoplan-core/src /mnt/DATA/git/govoplan-core/.venv/bin/python -m unittest discover -s tests
+```