docs: quote the published v1.7.0 ZIP size

[dknauss]

Summary

What changed? The distributed-ZIP figure moves from v1.6.0's 499,681 bytes (~488 KB) to the published v1.7.0 asset's 553,699 bytes (~541 KB). The number comes from the v1.7.0 release asset metadata. It changes in three places:

• readme.txt (the footprint FAQ);
• the README metrics table;
• docs/current-metrics.md.

The installed-footprint rows (vendor/, languages/, build/, total) are unchanged. This container's du block counts aren't consistent: vendor/ alone measures larger than the whole package. The apparent size is ~1.8 MB, in line with the documented ~1.9 MB, but the figures should be re-derived on a normal filesystem.

Why? This is the post-release follow-up, done the same way after 1.6.0.

Validation

• npm run lint:js: no JS changes
• npm run lint:css: no CSS changes
• npm run lint:i18n: no source strings changed
• npm run test: docs only
• npm run build: docs only
• verify-metrics.sh passes
• Tested in the block editor: docs only

Checklist

• Linked issue or explained why none was needed: routine post-release doc update.
• No sensitive details disclosed publicly

🤖 Generated with Claude Code

https://claude.ai/code/session_01KbVuMPN7YTcV27vwsG3LZ2

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Generated by Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.50%. Comparing base (907d2ba) to head (05c53f0).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #108   +/-   ##
=========================================
  Coverage     87.50%   87.50%           
  Complexity       22       22           
=========================================
  Files            55       55           
  Lines          6089     6089           
  Branches        597      597           
=========================================
  Hits           5328     5328           
  Misses          280      280           
  Partials        481      481           

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