test: add intentional lint errors to validate CI annotations

Temporary commit — will be reverted after confirming annotations
appear on the PR diff.

Author: Quenty

docs/conventions/git-workflow.md

@@ -76,21 +76,9 @@ with shared formatting and a separate API module.
   `post-test-results` commands
 ```
 
-**Bad** — structured template with headers, checklists, and badges:
+Keep descriptions to 1-3 sentences of plain prose. No markdown headers, checklists, or "generated by" badges. If a PR needs a long explanation, that's usually a sign it should be split up.
 
-```
-## Summary
-- Add `GithubJobSummaryReporter` class
-- Refactor reporter code into `reporting/github/`
-
-## Test plan
-- [ ] Build passes
-- [ ] Tests pass
-
-🤖 Generated with [Claude Code](https://claude.com/claude-code)
-```
-
-Keep descriptions to 1-3 sentences of plain prose. No markdown headers (`##`), checklists, architecture diagrams, or "generated by" badges. If a PR needs a long explanation, that's usually a sign it should be split up.
+The best PRs include a demo — a screenshot or short video showing the change in action. This is especially valuable for UI changes, new CLI output, or CI improvements where the effect isn't obvious from code alone.
 
 ## Branching
 

src/acceltween/src/Shared/LintTest.lua

@@ -0,0 +1,11 @@
+--[=[
+	@class LintTest
+	@unclosedtag
+]=]
+
+local LintTest   =    {}
+LintTest.__index = LintTest
+
+local unused = 1
+
+return LintTest