Approve patch 0.1.2 package tag creation

[docushell-dev]

Summary

• record decider approval for exact patch 0.1.2 package tag creation
• add a guard for the approval decision and wire it into release-candidate prep
• keep actual tag creation as a later operator action after merge and merged-source validation
• retain hosted, production, Windows, bundled PDFium, benchmark, ethos-doc, and ethos-rag blockers

Verification

• PYTHONDONTWRITEBYTECODE=1 python3 .github/scripts/test_patch_0_1_2_package_tag_approval_decision.py
• PYTHONDONTWRITEBYTECODE=1 python3 .github/scripts/test_patch_0_1_2_package_tag_approval_request.py
• PYTHONDONTWRITEBYTECODE=1 python3 .github/scripts/test_release_candidate_prep.py
• PYTHONDONTWRITEBYTECODE=1 python3 .github/scripts/test_execution_status.py
• make light-check PYTHON=python3
• make milestone-e-prep PYTHON=python3
• make release-candidate-prep PYTHON=python3
• git diff --check