feat: initial Silent Send browser extension

Chrome Manifest V3 extension that intercepts personal data and
substitutes it with user-defined replacements before sending to
Claude.ai. Hooks fetch() in the page's main world to catch API
requests, with bidirectional substitution (real→fake on send,
fake→real on display via reveal mode).

Includes popup UI with mapping management, live test/diff view,
activity log with badge count, options page with import/export,
and Shadow DOM traversal for Claude.ai compatibility.

https://claude.ai/code/session_01Dvgwe7XMoSxnWXkih8p1Cw

This commit is contained in:

Claude

2026-03-25 23:26:13 +00:00

commit 4576597e64

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				<!-- Open this in a browser to generate PNG icons, or use the SVGs directly -->

				<!-- For development, we'll create simple SVG icons -->