feat(cli): include every pairing address in QR codes

[thdxr]

Issue for this PR

Closes #

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Pairing QR codes from opencode pair and the desktop pairing dialog only carried one address, so a phone on a different network interface (LAN vs. Tailscale, etc.) could fail to pair.

• The QR now holds JSON with every non-loopback address: {"code","urls"}.
• The in-app scanner accepts that payload (and still accepts plain /auth/connect/<code> links), tries every address concurrently with a 5s timeout, and keeps the address that actually connected.
• When the server binds a wildcard host (0.0.0.0 / ::), /api/info now also advertises the loopback URL, so opencode pair prints a localhost link. Loopback stays out of the QR.

The iOS app is updated in anomalyco/opencode-ios#26.

How did you verify your code works?

• bun run check, bun run lint, bun run lint:changed
• bun test src/servers/connect/pairing.test.ts in packages/app (JSON payloads, legacy links, malformed input)

Screenshots / recordings

N/A

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

— from 𝕺𝖕𝖊𝖓𝕮𝖔𝖉𝖊