DEVX-118: feat: enhance documentation-as-code with badges, version refs, Vale

- Fix badge system: clean .badges dir from orphan branch, add version
  verification, make badges job depend on release (avoids stale version
  badge race condition)
- Add check_doc_versions.py: lint tool that verifies docs version
  references match current __version__, with --fix for auto-update
- Integrate check_doc_versions into release process (auto-updates docs
  on every release commit)
- Add Vale prose linter integration: .vale.ini, custom styles for
  terminology and code block language, CI step, make target
- Fix stale version references in docs (0.27.0 → 0.33.4)
- Fix e.g. → for example in docs (Google.Latin Vale rule)
- Add CI steps for check_doc_versions and Vale to quality workflow
- Add make targets: devx-check-doc-versions, devx-vale

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

.gitea/workflows/ci.yml

@@ -44,6 +44,19 @@ jobs:
         run: |
           . .venv/bin/activate 2>/dev/null || true
           python3 -m devx.ci.lint_docs --root .
+      - name: Documentation version reference check
+        env:
+          PYTHONPATH: src
+        run: |
+          . .venv/bin/activate 2>/dev/null || true
+          python3 -m devx.tools.check_doc_versions --root .
+      - name: Vale prose lint check
+        env:
+          PYTHONPATH: src
+        run: |
+          . .venv/bin/activate 2>/dev/null || true
+          export PATH="$HOME/.local/bin:$PATH"
+          vale --minAlertLevel=error docs/ AGENTS.md README.md
       - name: Translation completeness check
         env:
           PYTHONPATH: src

.gitea/workflows/post-merge.yml

@@ -8,7 +8,8 @@ name: Post-merge
 #   detect-type ──┬── validate-commit-msg (skip if release commit)
 #                 ├── release (skip if release commit)
 #                 │   └── publish (needs release — builds & publishes to PyPI)
-#                 ├── badges (ALWAYS runs — even on release commits)
+#                 ├── badges (needs release — ALWAYS runs, waits for release
+#                 │           so version badge picks up new __version__)
 #                 ├── configure-repo (independent — skip if release commit)
 #                 ├── sync-wiki (skip if release commit — runs for ALL merges)
 #                 └── vikunja (skip if release commit — runs for ALL merges)
@@ -17,9 +18,10 @@ name: Post-merge
 # release succeeds. This ensures the wiki and task tracker are updated
 # even for infrastructure-only changes (docs, CI config, etc.).
 #
-# The badges job uses `if: always()` with no is-release condition so it
-# runs on every push to master, including release commits. This ensures
-# badges (tests, coverage, version, etc.) are always current.
+# The badges job uses `if: always()` and needs `release` so it waits for
+# the release job to complete (whether it ran or was skipped). This ensures
+# the version badge always reflects the latest __version__ on master.
+# Badges run on every push to master, including release commits.
 #
 # When release creates a "release: vX.Y.Z" commit and tag, the publish
 # job (which depends on release) builds and publishes the package to the
@@ -204,7 +206,7 @@ jobs:
             --auto-login
 
   badges:
-    needs: [detect-type]
+    needs: [detect-type, release]
     if: always()
     runs-on: docker
     container: git.oblachno.oblachno.fyi/oblachno-oss/runner-images/ci-quality:latest