Feature: Collaboration Infrastructure Hardening

[stijn-dejongh]

Feature: Collaboration Infrastructure Hardening

Objective

Stabilize the recent script relocation (into ops/ + validation/), ensure workflows point to the right modules, and add maintenance automation (manifest + archival) so file-based orchestration stays healthy.

Context

• Script reorg PR (copilot/rework-automation-scripts) moved orchestration assets, but validation/documentation/automation follow-ups remain.
• New backlog items (manifest maintenance, work-item cleanup) eliminate manual toil inside work/collaboration/.

Execution Framework

• Process each task under .github/agents/approaches/file_based_collaboration/.
• When batching (e.g., running regression tests + doc updates), mirror the cadence described in .github/ISSUE_TEMPLATE/run-iteration.md.

Scope

• Validate script structure + task utilities (curator task).
• Update affected docs (writer-editor task).
• Test CI workflows for new paths (build automation task).
• Add directives manifest upkeep script.
• Add cleanup/archival scripts for done/archive directories.

Acceptance Criteria

• ✅ Script reorg validated, duplicates removed, and references cleaned up.
• ✅ HOW_TO_USE + CONTRIBUTING references updated with new paths.
• ✅ .github/workflows/validation.yml and orchestration.yml green with new composite action.
• ✅ ops/scripts/maintenance/update_directives_manifest.py (plus tests + README) in place with dry-run/fix flags.
• ✅ Archive/compression automation available with configurable ages + logging.

Linked Tasks

• work/collaboration/inbox/2025-11-25T1837-curator-validate-refactor.yaml
• work/collaboration/inbox/2025-11-25T1838-writer-editor-update-docs.yaml
• work/collaboration/inbox/2025-11-25T1839-build-automation-test-workflows.yaml
• work/collaboration/inbox/2025-11-28T0426-build-automation-manifest-maintenance-script.yaml
• work/collaboration/inbox/2025-11-28T0427-build-automation-work-items-cleanup-script.yaml