CODAP-1112: Sync V3 strings with POEditor using ownership model

[kswenson]

Summary

• Splits the combined en-US.json5 into two files: en-US-dg.json (V2-owned DG.* strings from master) and en-US-v3.json5 (V3-owned strings)
• Updates the translation loader to merge both files at runtime
• Rewrites strings-pull-project.sh and strings-push-project.sh to respect string ownership — V3 only pushes/pulls V3-owned keys to/from POEditor
• Adds retry logic for en-US pulls and JSON5 support to push scripts
• Removes 7 unused V3 strings and fixes undo/redo string key prefix bugs
• Adds ar (Arabic), fr (French), nl (Dutch), pl (Polish) to the pull script — now includes all 18 POEditor languages with ≥50% translation coverage
• Updates codap-v3-build skill with string sync workflow documentation
• Adds design doc and implementation plan

Jira

CODAP-1112

Related

• PR #2390 — V2 build skill ownership-aware string handling (on master)
• PR #2389 — Unused DG.* strings audit doc (CODAP2-286, on master)

Test plan

• Verify en-US-dg.json + en-US-v3.json5 merge correctly at runtime (no missing keys)
• Verify strings-push-project.sh only pushes V3-owned keys
• Verify strings-pull-project.sh correctly splits pulled translations into DG and V3 files
• Run Jest tests (translate.test.ts, translate.es.test.ts)
• Verify no UI regressions from string key references

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.56%. Comparing base (ebac60a) to head (6a989cf).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2391   +/-   ##
=======================================
  Coverage   85.56%   85.56%           
=======================================
  Files         753      753           
  Lines       41736    41739    +3     
  Branches    10335    10325   -10     
=======================================
+ Hits        35713    35716    +3     
  Misses       6008     6008           
  Partials       15       15           

Flag	Coverage Δ
cypress	69.29% <100.00%> (+<0.01%)	⬆️
jest	57.09% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[cypress]

codap-v3    Run #10258

Run Properties:   Passed #10258  •  be3d0c020e: Increment the build number

Project	codap-v3
Branch Review	main
Run status	Passed #10258
Run duration	02m 10s
Commit	be3d0c020e: Increment the build number
Committer	eireland
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	0
Skipped	0
Passing	4
View all changes introduced in this branch ↗︎

[Copilot]

Pull request overview

This PR implements a string ownership model for CODAP V2 and V3 translations, splitting the combined English string file into two files to support concurrent V2/V3 development with shared POEditor infrastructure. V2 owns DG.* strings (managed from the master branch), while V3 owns V3.* strings (managed from main).

Changes:

• Splits en-US.json5 into en-US-dg.json (1,144 DG strings from V2) and en-US-v3.json5 (207 V3-owned strings)
• Updates translation loader to merge both files at runtime
• Rewrites POEditor sync scripts with V3-only push filtering, retry logic, and timeout protection
• Fixes two string key prefix bugs (DG.Undo → V3.Undo for map pins and filter formula)
• Updates V3 build skill with comprehensive translation sync workflow documentation

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
v3/src/utilities/translation/lang/en-US-v3.json5	New file containing V3-owned strings (206 V3.* + 1 DG.* for dynamic use)
v3/src/utilities/translation/lang/en-US-dg.json	New file containing DG strings synced from V2 master (1,144 strings)
v3/src/utilities/translation/languages.ts	Updated to import and merge both DG and V3 string files
v3/src/utilities/translation/translate.test.ts	Updated mocks to reflect split string files
v3/src/utilities/translation/translate.es.test.ts	Updated mocks to reflect split string files
v3/src/components/map/components/inspector-panel/map-measure-palette.tsx	Fixed undo/redo string keys from DG.Undo.map to V3.Undo.map
v3/src/components/case-tile-common/filter-formula-bar.tsx	Fixed undo/redo string keys from DG.Undo.caseTable to V3.Undo.hideShowMenu
v3/scripts/strings-push.sh	Added JSON5 support and documentation; set SYNC_TERMS=0 for shared project
v3/scripts/strings-push-project.sh	Rewritten to push only V3-owned strings with error handling
v3/scripts/strings-pull.sh	Enhanced with better documentation
v3/scripts/strings-pull-project.sh	Completely rewritten with timeout, retry logic, and en-US DG/V3 splitting
v3/package.json	Changed strings:update to pull-first order (pull then push)
.claude/skills/codap-v3-build/SKILL.md	Added comprehensive translation sync workflow to Phase 3
v3/docs/plans/2026-02-13-sync-v3-strings-poeditor-design.md	Design document explaining ownership model and architecture
v3/docs/plans/2026-02-13-sync-v3-strings-poeditor.md	Detailed implementation plan with 14 tasks
v3/docs/plans/v2-build-skill-string-changes.md	Documentation of V2 build skill changes for ownership-aware handling

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[bfinzer]

👍🏻LGTM
Take a look at the conflicts and cypress test failures