[jjoonleo]

Summary

• Advances [Release] Complete Google Play Data safety form #441 under parent track [Release Track] Privacy, account deletion, and Data safety #464.
• Adds a source-backed Google Play Data safety worksheet that captures current app data-flow evidence without claiming final Play Console answers.
• Adds an issue-specific plan and links the worksheet from the docs index and release checklist.

Verification

• git diff --check
• rg -n "Google Play Data Safety Worksheet|externally blocked|#441|#464|Submitted Answers|docs/Google-Play-Data-Safety.md|Google-Play-Data-Safety.md" docs/Google-Play-Data-Safety.md plans/issue_441_data_safety_form_plan.md docs/Home.md docs/Release-Checklist.md

Remaining human tasks

• Backend owner must verify deletion and retention behavior for normal, Google, and Apple account paths ([Release] Verify backend account and data deletion behavior #439).
• Product/legal owner must approve privacy policy text and consistency with backend behavior ([Release] Draft and approve the privacy policy #434).
• Release owner must host the approved privacy policy and external account deletion page at public HTTPS URLs ([Release] Host the privacy policy on a public HTTPS URL #435, [Release] Create public account deletion request URL #440).
• Release owner must confirm the final active Android release SDK/provider set.
• Play Console owner must enter and submit the final Data safety form after prerequisites are complete.

Status

#441 is advanced but remains externally blocked. This PR does not close #441.