[Tests] Restructure integration tests to table-return shape

[keithharvey]

Warning

Superseded — this PR was an earlier mint of the stack. The type-error cleanup
now lands via the current stack tip fmt-llm #8398.
This slice's current counterpart is #8404.
Kept closed for review history; nothing here merges.

Part of BAR type-error cleanup. Rebuilds idempotently from master via just bar::migrate::stylua-cleanup-generate.

What it does: Hand-curated (not a codemod): restructures the tests under luaui/Tests/ and luaui/TestsExamples/ (20 files) from bare-global hook declarations to a return { ... } shape, and patches dbg_test_runner.lua to read hooks from the returned table.

# integration-tests - restructure luaui/Tests and luaui/TestsExamples files
# from bare-global hook declarations to a return-table shape; patch the
# dbg_test_runner widget to read hooks from the returned table. Carried-
# commit leaf — no codemod; curated branch holds the hand-authored commit.

Isolated so the convention change can be discussed/reverted independently.

Branch Topology

All branches in the BAR type-error cleanup stack — see Bulk Migrations for the migration log and how to run just bar::migrate::stylua-cleanup. Regenerated deterministically by just bar::migrate::stylua-cleanup-generate. Generated 2026-07-22 19:44:41 UTC.

Leaves — each isolates one transform's diff vs fmt:

Branch	Command	Diff vs parent	Units
fmt	stylua	1425 files, +196955 −195449	✅ pass
mig-bracket	bar-lua-codemod bracket-to-dot	351 files, +7779 −7779	✅ pass
mig-rename-aliases	bar-lua-codemod rename-aliases	177 files, +376 −376	✅ pass
mig-detach-bar-modules	bar-lua-codemod detach-bar-modules	181 files, +1702 −1573	✅ pass
👉 mig-integration-tests — you are here	<hand curated>	20 files, +134 −81	✅ pass
mig-busted-types	<hand curated>	12 files, +1501 −0	✅ pass

Rollups — composite branches stacking the leaves and (for fmt-llm) the env + LLM layers:

Branch	Diff vs master	Diff vs parent	Units
mig	1449 files, +201211 −198022	528 files, +11446 −9763	✅ pass
fmt-llm-source	1454 files, +201680 −198185	61 files, +523 −217	✅ pass
fmt-llm	1456 files, +201733 −198206	32 files, +70 −38	✅ pass

[github-actions]

Integration Test Results

14 tests   6 ✅  3s ⏱️
 1 suites  8 💤
 1 files    0 ❌

Results for commit 2198b31.

♻️ This comment has been updated with latest results.

[keithharvey]

Superseded by #8404 — recreated with its head on beyond-all-reason instead of the fork; the whole migration stack now lives same-repo. Branch content is identical; review history stays readable here.