Ship AIVPN smart protocol picker and bump to v3.0.0.

Heuristic selection (stealth/balanced/speed) for invites, guest create, and user connections.

Co-authored-by: Cursor <cursoragent@cursor.com>

translations/en.json

@@ -525,6 +525,18 @@
     "coming_soon":  "Coming soon",
     "promo_star_cta":  "Star us on GitHub",
     "aivpn_subtitle":  "AI-driven protocol selection that picks the right tunnel for the moment. Land it sooner — drop a star.",
+    "aivpn_enable":  "Enabled",
+    "aivpn_probe":  "Probe ports",
+    "aivpn_pick_now":  "Pick now",
+    "aivpn_strategy_balanced":  "Balanced",
+    "aivpn_strategy_stealth":  "Stealth",
+    "aivpn_strategy_speed":  "Speed",
+    "aivpn_picked":  "Best protocol",
+    "aivpn_alternatives":  "also",
+    "aivpn_no_candidates":  "No installed VPN protocols to pick from",
+    "aivpn_picking":  "Scoring protocols…",
+    "aivpn_on":  "On",
+    "aivpn_protocol_option":  "AIVPN (auto)",
     "revproxy_title":  "Reverse Proxy",
     "revproxy_subtitle":  "High-performance traffic obfuscation: hide your VPN endpoint behind a polished public-facing site, drop the DPI footprint.",
     "management":  "Management",