## Summary
Registers a real `paste` tool. The `tools/paste/index.ts` from #506 was
never registered and sent a `{cmd:"paste"}` WebSocket command
simulator-server doesn't implement — dead on every platform.
- **iOS simulator**: simulator-server `POST /api/clipboard/text` fills a
private pasteboard and pushes it into the sim synchronously (host
clipboard untouched); the tool then sends the ⌘V chord over the existing
`key` command (the same `simulatorSendKeyEvent` path the keyboard tool
uses).
- **Android emulator**: same route over the emulator gRPC bridge, then
`KEYCODE_PASTE` via `adb shell input`.
- **ios-remote**: the MoQ transport's existing paste primitive, awaited.
- Clean 400 for tvOS / Android TV (runtime probe), physical devices,
Chromium (a renderer paste would clobber the *host* clipboard), Vega.
- `{{secret:<NAME>}}` placeholders as in `keyboard`; allowed inside
`run-sequence`; device-interact SKILL updated.
- Description/skill tell the agent `paste` is **not** a `keyboard`
substitute — only where a real user would paste (OTP/2FA code, long
link/token, testing paste handling).
## Blocked on
a simulator-server built with the `clipboard` feature:
software-mansion/radon#185 adds it to the `argent` alias (no sim-server
API change). Until a release + bin bump, the tool reports
`PASTE_CLIPBOARD_UNSUPPORTED` (with an update hint) against the shipped
binary.
## Test plan
- 13 new unit tests (`test/paste.test.ts`) + secret-placeholder tests;
full tool-server suite, lint, knip green (the 4 telemetry/bind test
files that fail locally fail identically on `main`).
- Live against a locally built simulator-server: iOS 26.5 Settings
search (12 back-to-back pastes in order), Messages composer
(multi-line/tab/emoji/diacritics preserved), `{{secret:EMAIL}}` never
echoed or logged; Pixel_9 Settings search (ASCII + `Zażółć🔑`), Expensify
RN login field; `run-sequence` paste steps; live 400s for tvOS sim /
phone serial / chromium id.
filip131311