Validate community preset submissions before opening catalog PRs (#4787)

* fix: verify preset submissions before catalog PR

Compare published manifests and README release references with issue fields, then verify generated catalog and documentation before success labeling. Regenerate the workflow lock file and cover submission, blocked, and repair outcomes.

Refs #4746

Assisted-by: GitHub Copilot (model: GPT-6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix: validate UTC dates and scoped preset release URLs

Record the submission UTC date and require generated catalog timestamps to match it; keep update creation dates intact. Detect stale README release links whose scoped tag prefix matches the submitted release, including ZIP archive URLs.

Refs #4746

Assisted-by: GitHub Copilot (model: GPT-6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix: scope monorepo README links and validate homepage

Avoid treating unrelated unscoped monorepo release URLs as stale while retaining checks for matching preset scopes and release assets. Require generated catalog homepage to equal the submitted repository URL for new and updated presets.

Refs #4746

Assisted-by: GitHub Copilot (model: GPT-6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix: distinguish unscoped archive URLs in monorepos

Use the downloaded archive manifest count to apply bare-tag stale URL checks only when the archive contains one preset. Keep scoped tags and matching release assets checked, and document the monorepo exception with regression coverage.

Refs #4746

Assisted-by: GitHub Copilot (model: GPT-6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): bound submitted archive validation

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): validate README and documentation identity

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): track existing documentation rows

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): harden README command parsing

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): escape Markdown backslashes

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: mnriem