Add taskmd worktickets directory

[scottopell]

Summary

Introduce taskmd work tickets for repository-local task context in worktickets/.

This adds:

• a top-level worktickets/ directory with the standard _TEMPLATE.md
• a short worktickets/README explaining the filename convention and optional taskmd usage
• taskmd validation in pre-commit and GitLab technical linters
• CODEOWNERS/JOBOWNERS entries so workticket files are intentionally free-form while the CI job has an owner

Validation

• /home/bits/.local/bin/taskmd validate
• /home/bits/.local/bin/taskmd list
• pre-commit run taskmd-validate --all-files
• pre-push hooks, including gitlab-configuration

[github-actions]

@codex review

[datadog-official]

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 7 Pipeline jobs failed

DataDog/datadog-agent | bazel:test:windows-amd64     

DataDog/datadog-agent | files_inventory_check     

DataDog/datadog-agent | oracle: [21.3.0-xe]     

View all 7 failed jobs.

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[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. What shall we delve into next?

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[dd-octo-sts]

Gitlab CI Configuration Changes

Added Jobs

validate_worktickets

validate_worktickets:
  image: registry.ddbuild.io/ci/datadog-agent-buildimages/linux$CI_IMAGE_LINUX_SUFFIX:$CI_IMAGE_LINUX
  needs: []
  rules:
  - changes:
      compare_to: $COMPARE_TO_BRANCH
      paths:
      - worktickets/**/*
    when: on_success
  script:
  - uvx 'taskmd>=1.3.0' validate
  stage: lint
  tags:
  - arch:amd64
  - specific:true

Changes Summary

Removed	Modified	Added	Renamed
0	0	1	0

ℹ️ Diff available in the job log.