DEVX-122: feat: consolidate docs checks into devx-docs-check target

AGENTS.md

@@ -226,14 +226,14 @@ After a PR is merged to master, the **post-merge workflow**
    - Pushes both the commit and tag to master
 
 3. **sync-wiki** — Syncs documentation to the Gitea wiki. Runs for ALL
-   non-release commits (not just when release succeeds), so docs-only
+   non-release commits (not only when release succeeds), so docs-only
    changes still update the wiki.
 
 4. **badges** — Generates and pushes quality badge SVGs to the `badges` branch.
    Uses `if: always()` so it runs on every push, including release commits.
 
 5. **vikunja** — Marks the corresponding Vikunja task as done. Runs for ALL
-   non-release commits (not just when release succeeds), so infrastructure-only
+   non-release commits (not only when release succeeds), so infrastructure-only
    changes still update the task tracker.
 
 6. **publish** — Runs after release succeeds (needs: release). Builds and
@@ -398,7 +398,7 @@ system loads `.env` automatically via `python-dotenv`.
 
 ### pyproject.toml [tool.devx] Configuration
 
-In addition to `DEVX_` env vars, several devx tools read configuration from
+In addition to `DEVX_` env vars, many devx tools read configuration from
 the `[tool.devx]` section in `pyproject.toml`. This allows per-project
 customization without environment variables.
 
@@ -610,7 +610,7 @@ the user should not need to specify which profile to use.
 2. **Background by default, foreground when blocking.**
 3. **Provide full context in the prompt** — subagents don't inherit conversation history.
 4. **One subagent per concern.** Chain: investigate → fix in main session → review.
-5. **Don't delegate trivial work** (<30s, <50 lines of context).
+5. **Don't delegate minor work** (<30s, <50 lines of context).
 6. **Compact after subagent returns.**
 7. **Never skip delegation to save time** — it keeps main context small.