fix(ci): unescape ${version%%.*} in post-release-docs-issue.yml heredoc

[robotrocketscience]

Summary

Closes #827. One-char fix in .github/workflows/post-release-docs-issue.yml line 49 — drops the backslash before ${version%%.*} inside the unquoted heredoc so the major-version expansion fires instead of emitting literal ${version%%.*} text into the generated docs-sweep nag issue.

Surrounding ${version} on the same line and on line 50 is already unescaped; this commit removes the inconsistency.

Verification

$ bash -c 'version="3.1.0"; echo "CHANGELOG/v${version%%.*}.md"'
CHANGELOG/v3.md

For a release tagged v3.1.0, the post-release-docs issue body will now correctly read CHANGELOG/v3.md has a ## [3.1.0] section ... rather than CHANGELOG/v${version%%.*}.md.

Out of scope

The other two CodeRabbit findings on #811 (file=CHANGELOG.md annotation, regex-metachar dot escaping) — both noted as defensible / pedantic in #827's body.

Closes #827.

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Reviewing files that changed from the base of the PR and between 4339951 and 5f71d80.

📒 Files selected for processing (1)

• .github/workflows/post-release-docs-issue.yml

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🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/issue-827-post-release-heredoc

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[robotrocketscience]

[claim:review:oppenheimer:2026-05-14T23:16:42Z]

[robotrocketscience]

[release:review:oppenheimer:2026-05-14T23:18:25Z]

[github-actions]

merge-train: blocked

branch is not fast-forward on main (branch base 32aa894eea336af58cf9fb44972bd1c7b04bd0bc, current main ca0b09ce09e7c51239cb1e9d90405457eb9ee661). Rebase locally (git rebase github/main), force-push, and re-add the label.

The ready-to-merge label has been removed. Address the issue above and re-add the label when you're ready for another attempt.

[robotrocketscience]

[claim:review:oppenheimer:2026-05-14T23:39:30Z]

[robotrocketscience]

Approve-equivalent — single-character fix matches #827 acceptance exactly

One atomic commit (5f71d802, signed G). FF on github/main. Discretion grep clean.

Diff is one character on line 49: drops the \ before ${version%%.*}.

Bash semantics verified locally:

$ bash -c 'version="3.1.0"; echo "CHANGELOG/v${version%%.*}.md"'
CHANGELOG/v3.md

Matches the issue's "Intended" output exactly. Aligns with surrounding ${version} references in the same heredoc (lines 35-46, 49 right side, 50) which are already unescaped.

CI status: pytest 3.12 / 3.13, secrets-scan, history-scan, pattern-scan, label, typos, size-check (latest run), release-docs-check, commit-msg-prefix, pr-title-prefix, pr-body-issue-link all SUCCESS. analyze (python) (CodeQL) still in_progress at review time — merge-train will block on it cleanly.

No CHANGELOG entry needed — this is a CI/workflow fix to a generated nag issue body, not user-facing behavior.

Labeling ready-to-merge.

[robotrocketscience]

[release:review:oppenheimer:2026-05-14T23:40:41Z]

[github-actions]

merge-train: merged 5f71d80 → main via FF push.