feat(skills): add syncing-dhis2-translations Claude Code skill

[netroms]

Summary

Adds a Claude Code skill that captures the workflow for fixing fake "English-as-translation" entries in i18n_global_*.properties — the recurring bug where the English source text was saved as a "translation" in Russian, Spanish, etc., causing those users to see English in the UI.

The skill grew out of the DHIS2-19912 cleanup. The same playbook applies to future regressions.

What's in the skill

• SKILL.md — pipeline overview (Phil's 4-step process), the "fake translation" detection pattern, full cleanup workflow, tx CLI setup, the bot-PR signing situation and workaround, common mistakes table, stakeholders, links to deep-dive docs
• audit-fake-translations.py — list keys where the target value byte-equals the English source (per language), with --keys or --regex filtering
• delete-fake-translations.py — safely remove fakes (never deletes real translations because it compares value-for-value to source); has --dry-run

Why a top-level skills/ directory

Claude Code skills are a specific format (YAML-frontmatter SKILL.md plus supporting scripts) distinct from regular markdown guides. A dedicated directory:

• keeps the format separable from /guides/
• gives a clear home for future team skills (Flyway conflict resolution, OSIV migration prep, etc.)
• lets devs symlink one specific skill into ~/.claude/skills/ without bringing along the whole /guides/ tree

skills/README.md documents installation (symlink vs. copy) and contribution conventions (naming, descriptions).

How to use after merge

# Adjust path to your wow-backend clone
ln -s ~/src/dhis2/wow-backend/skills/syncing-dhis2-translations \
      ~/.claude/skills/syncing-dhis2-translations

Next Claude Code session will pick it up automatically. Ask Claude something like "investigate fake Russian translations in dhis2-core" and it'll invoke the skill.

Tested

The skill was iteratively RED/GREEN-tested with subagent baseline scenarios:

• RED (without skill): agent suggested tx push -s, --dry-run push, "mark unreviewed in Transifex UI", guessed Slack channel for translator notification, missed the bot-signing gotcha
• GREEN (with skill): all the above fixed; agent followed the canonical delete-and-tx push -t -f workflow, knew to use the Transifex Announcements feature, and flagged the bot resync PR may need amending

Test plan

• Reviewer reads skills/syncing-dhis2-translations/SKILL.md and confirms it matches their mental model of the workflow
• Reviewer tries the symlink installation and confirms Claude Code lists the skill
• (Optional) Verify by running audit-fake-translations.py on a current branch

AI Assisted

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
11 Accepted issues

Measures
2 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube Cloud