refactor(app): debloat 3.3.1 and fix startup restoration

Maintainer changes on top of PR #2 (Naveax). Reduces the release to two
deliberate connection modes and resolves the issues found in review:

- Lock-screen privacy: move VISIBILITY_PRIVATE and a generic publicVersion
  into MainActivity.updateVpnNotification. The PR's fix lived in an
  unreferenced class and never reached the live notification.
- Haptics: restore the default to off, and reduce HapticSettings to a
  single success() on connect/disconnect via the native channel.
- SOCKS5: make it a real proxyOnly local-proxy mode rather than a TUN
  connection under a different label. TUN stays the default.
- Health probe: restore the idle-only guard so /health is no longer polled
  every 30s while connected.
- Recovery: add a _connectionEpoch counter so connect() aborts an
  in-flight Extreme recovery.
- Startup restoration: rebuild the recovery snapshot from the still-active
  session after an app-process restart (TUN), and surface an honest
  orphaned state with a Reconnect action in proxy mode.

Drops per-app routing entirely. It only ever functioned in TUN --
addDisallowedApplication lives inside the VPN-interface setup that
proxyOnly skips -- and its allowlist half had no Dart caller.

Also removes flutter_local_notifications, the global tap-haptic surface,
and unused runtime telemetry.

Co-Authored-By: Claude Opus 5 <[email protected]>

pubspec.lock

@@ -73,14 +73,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.9"
-  dbus:
-    dependency: transitive
-    description:
-      name: dbus
-      sha256: d0c98dcd4f5169878b6cf8f6e0a52403a9dff371a3e2f019697accbf6f44a270
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.7.12"
   fake_async:
     dependency: transitive
     description:
@@ -126,30 +118,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.2"
-  flutter_local_notifications:
-    dependency: "direct main"
-    description:
-      name: flutter_local_notifications
-      sha256: "674173fd3c9eda9d4c8528da2ce0ea69f161577495a9cc835a2a4ecd7eadeb35"
-      url: "https://pub.dev"
-    source: hosted
-    version: "17.2.4"
-  flutter_local_notifications_linux:
-    dependency: transitive
-    description:
-      name: flutter_local_notifications_linux
-      sha256: c49bd06165cad9beeb79090b18cd1eb0296f4bf4b23b84426e37dd7c027fc3af
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.0.1"
-  flutter_local_notifications_platform_interface:
-    dependency: transitive
-    description:
-      name: flutter_local_notifications_platform_interface
-      sha256: "85f8d07fe708c1bdcf45037f2c0109753b26ae077e9d9e899d55971711a4ea66"
-      url: "https://pub.dev"
-    source: hosted
-    version: "7.2.0"
   flutter_secure_storage:
     dependency: "direct main"
     description:
@@ -464,14 +432,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.0"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      sha256: "91bd59303e9f769f108f8df05e371341b15d59e995e6806aefab827b58336675"
-      url: "https://pub.dev"
-    source: hosted
-    version: "7.0.2"
   platform:
     dependency: transitive
     description:
@@ -621,14 +581,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.11"
-  timezone:
-    dependency: transitive
-    description:
-      name: timezone
-      sha256: "2236ec079a174ce07434e89fcd3fcda430025eb7692244139a9cf54fdcf1fc7d"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.9.4"
   typed_data:
     dependency: transitive
     description:
@@ -781,14 +733,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.0"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      sha256: "971043b3a0d3da28727e40ed3e0b5d18b742fa5a68665cca88e74b7876d5e025"
-      url: "https://pub.dev"
-    source: hosted
-    version: "6.6.1"
   yaml:
     dependency: transitive
     description: