[italiancoder1950]

Version bump to 0.1.12. Bumps package.json, tauri.conf.json, Cargo.toml and Cargo.lock.

Ships to the public since 0.1.11:

• Encrypted connection export (.dat, protected by a separate export password) — Export connections are unencrypted #27 (PR feat(export): encrypted connection export (issue #27) #29)
• "Unencrypted backup" relabel of the plaintext export; import auto-detects the format
• Hardening: reject non-default KDF params on import (prevents a malformed-header DoS)
• Sort A–Z toggle in the connection tree (view-only) — Export connections are unencrypted #27 (PR feat(ui): sort connections by name (issue #27) #30)

After merge: tag v0.1.12 to trigger the signed CI release.