[acedatacloud-dev]

Summary

• Keep Markdown hard breaks while removing accidental line-end spaces from generated MDX.
• Strip trailing spaces inside fenced examples, which are rejected by the coordinator's git diff --check gate.
• Add a regression test for prose hard breaks, single trailing spaces and fenced code.

Why

The GPT-6.1 Terra Docs coordinator produced a complete 3996-page report and passed MDX validation, then failed at Git's whitespace gate (git exited 2). The generated diff contained 176 trailing-whitespace diagnostics in translated Responses code examples; two newly translated guides had additional prose/list line-end spaces.

Validation

• python3 -m compileall -q scripts tests && python3 -m unittest — 52 tests passed.
• node --test tests/mdx-validation.test.mjs — 4 tests passed.
• Read-only preview against current Backend 9f0013ca3867522e5bf9534bb9de3a49ec7068a6 — 3996/3996 translations current.
• node scripts/validate_mdx.mjs /tmp/docs-terra-preview-whitespace-r2-20261101 — 4161/4161 pages valid.
• Copied the complete preview into a clean Docs Git clone, staged 663 changed files, and ran git diff --cached --check HEAD — zero diagnostics.
• git diff --check on this PR — passed.

Release

Merge this generator fix, then rerun the Backend Docs coordinator. It will regenerate the content PR from the current source and translations. Rollback is a normal revert of this generator change.