Add local Chrome extension capture handoff

[h4yfans]

Summary

• Adds a Manifest V3 Chrome extension for page, quote, link, image, audio, video, and PDF capture.
• Adds a local native messaging host that writes captures to a durable local handoff folder and launches Memry, so captures still work when Memry is closed.
• Imports pending captures into the desktop inbox when a vault opens or while Memry is running, with clip/PDF domain and IPC support.
• Documents the local browser capture path and keeps it out of cloud handoff.

Verification

• pnpm --filter @memry/desktop exec vitest run --config config/vitest.config.ts --project shared ../../packages/contracts/src/extension-capture-api.test.ts ../../packages/domain-inbox/src/commands.test.ts
• pnpm --filter @memry/desktop exec vitest run --config config/vitest.config.ts --project main src/main/capture-handoff/importer.test.ts src/main/inbox/domain.test.ts src/main/ipc/inbox-handlers.test.ts
• pnpm test:chrome-extension && node --test apps/desktop/native-host/host-core.test.mjs
• pnpm --filter @memry/desktop typecheck
• pnpm --filter @memry/desktop lint
• pnpm docs:impact --strict
• pnpm docs:build

[vercel]

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Project	Deployment	Actions	Updated (UTC)
memry-docs	Ready	Preview, Comment	May 13, 2026 1:21pm
memrynote-landing	Ready	Preview, Comment	May 13, 2026 1:21pm

[codecov]

Codecov Report

❌ Patch coverage is 90.55118% with 12 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
apps/desktop/src/main/vault/index.ts	40.00%	6 Missing ⚠️
apps/desktop/src/main/capture-handoff/importer.ts	97.72%	2 Missing ⚠️
apps/desktop/src/main/inbox/domain.ts	86.66%	2 Missing ⚠️
apps/desktop/src/main/index.ts	66.66%	2 Missing ⚠️

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