Add docs governance and Czech parity updates

BACKLOG.md

@@ -0,0 +1,21 @@
+# Backlog
+
+Prioritized work that remains after link and structure fixes.
+
+## Completed
+
+1. P0 - Integrity and consistency (completed on 2026-03-11).
+   - EN/CS charter cadence alignment updated in `docs/cs/charter/foundational_charter.md`.
+   - Czech placeholder stubs replaced across `docs/cs/charter/` and `docs/cs/codex/`.
+2. P1 - Repository quality gates (completed on 2026-03-11).
+   - Added docs CI workflow in `.github/workflows/docs-check.yml`.
+   - Added markdown lint config in `.markdownlint.yaml`.
+   - Added local link checker script in `scripts/check_markdown_links.sh`.
+   - Added translation parity report in `scripts/translation_parity_report.sh` and CI summary/artifact publishing.
+3. P2 - Governance and contribution operations (completed on 2026-03-11).
+   - Added repository governance policy in `GOVERNANCE.md`.
+   - Added issue templates and PR template under `.github/`.
+   - Added `CODEOWNERS` for charter/license/governance-critical paths.
+4. P3 - License clarity (completed on 2026-03-11).
+   - Added plain-language compatibility and interpretation guide in `LICENSE_FAQ.md`.
+   - Linked FAQ from `LICENSE.md`, root `README.md`, and language landing pages.