feat(aiturk): phone link for AITURK Mobil (1.0.0-beta.15)

Settings gets a Phone link window: when enabled, the IDE main process runs a
small TLS proxy on the local network (self-signed certificate, pinned by its
fingerprint) in front of the loopback backend and pairs a phone by QR code
or an 8-character code. Each phone gets its own revocable token; the backend
session token never leaves the computer. The root page, terminal sockets and
secret or settings-changing endpoints are not reachable from a phone. The
old WebRTC pairing window is replaced.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B8ppceaR5s6cvMnm7uGRnf

package-lock.json

@@ -65,7 +65,7 @@
     },
     "apps/desktop": {
       "name": "aiturk-ide",
-      "version": "1.0.0-beta.14",
+      "version": "1.0.0-beta.15",
       "license": "MIT",
       "dependencies": {
         "@assistant-ui/core": "0.2.23",