docs(workplans): add OPEN-WP-0003 and OPEN-WP-0004

OPEN-WP-0003: CLI validator for Integration Definition schema and index checks.
OPEN-WP-0004: Portfolio survey and registration of additional integrations.

workplans/OPEN-WP-0003-integration-cli-validator.md

@@ -0,0 +1,82 @@
+---
+id: OPEN-WP-0003
+type: workplan
+title: "Integration CLI validator"
+domain: infotech
+repo: open-reuse
+status: ready
+owner: codex
+topic_slug: infotech
+created: "2026-06-24"
+updated: "2026-06-24"
+---
+
+# Integration CLI validator
+
+Replace the manual validation checklist in `registry/README.md` with an
+automated `open-reuse validate` command. Follows OPEN-WP-0002 schema v0.1 and
+patterns from reuse-surface `reuse-surface validate`.
+
+## Design decisions
+
+- **Runtime:** Python package (`open_reuse/`) with `uv`/`pyproject.toml`, matching
+  reuse-surface CLI conventions.
+- **Scope:** Validate Integration Definition YAML against
+  `schemas/integration.schema.yaml` and check index consistency in
+  `registry/indexes/integrations.yaml`.
+- **Out of scope:** Upstream monitoring, validation harness execution, or
+  federation publish — those belong to later workplans.
+
+## Bootstrap Python package
+
+```task
+id: OPEN-WP-0003-T01
+status: todo
+priority: high
+```
+
+Add `pyproject.toml`, `open_reuse/` package skeleton, and entry point
+`open-reuse` with a `validate` subcommand stub. Include `jsonschema` and `pyyaml`
+as dependencies. Document install and run commands in `AGENTS.md` and
+`.claude/rules/stack-and-commands.md`.
+
+## Implement validate command
+
+```task
+id: OPEN-WP-0003-T02
+status: todo
+priority: high
+```
+
+Implement `open-reuse validate` with:
+
+- Schema validation of one or more `*.integration.yaml` files (default: scan
+  `registry/integrations/` if present).
+- Index checks: every `indexes/integrations.yaml` row has required fields; `id`
+  and `reuse_mode` are consistent when the definition file is reachable.
+- `--fail-on-warnings` for promotion-gate checks (missing maintainers on
+  `active` status, missing index row for local definitions).
+- Exit code 0 on success, non-zero on errors.
+
+## Add tests and CI
+
+```task
+id: OPEN-WP-0003-T03
+status: todo
+priority: medium
+```
+
+Add `tests/test_validate.py` covering schema pass/fail, index consistency, and
+the markitect-quarkdown reference fixture. Add `.gitea/workflows/ci.yml` running
+pytest on push/PR to `main`.
+
+## Update registry documentation
+
+```task
+id: OPEN-WP-0003-T04
+status: todo
+priority: medium
+```
+
+Update `registry/README.md` to reference `open-reuse validate` as the primary
+validation path. Mark manual checklist as fallback until CI is green.