fix: block file_picker 12.0.0-beta prerelease (#1)

CHANGELOG.md

@@ -21,6 +21,7 @@ All notable changes to this project will be documented in this file.
 ### Fixed
 
 - **`Pick.saveFile` is source-compatible with file_picker 12.** file_picker 12 made `FilePicker.saveFile`'s `fileName` and `bytes` parameters required and non-null, which broke the analyzer build (`argument_type_not_assignable`) under a fresh `flutter pub get` that resolved the newer file_picker. `Pick.saveFile` keeps its nullable facade surface but now guards both arguments before forwarding, so the call type-checks against file_picker 11 and 12 and a null argument fails with a clear `ArgumentError` instead of an unhelpful type error. Touches `lib/src/facades/pick.dart`.
+- **`file_picker` constraint tightened to exclude the 12.0.0 prerelease line.** The constraint is now `>=11.0.2 <12.0.0-0` to lock the 11.x stable releases and exclude every `12.0.0-*` prerelease. A `<12.0.0` bound would NOT have been enough: pub_semver orders prereleases below the stable release (`12.0.0-beta < 12.0.0`), so `12.0.0-beta` still satisfied it; the `-0` suffix is the lowest possible prerelease and excludes the entire `12.0.0` line. This pairs with the `Pick.saveFile` source-compatibility guard above as defense in depth. Touches `pubspec.yaml`.
 - **`Crypt` now accepts the `base64:` app key that `key:generate` produces.** `key:generate` writes `APP_KEY=base64:<base64 of 32 random bytes>`, but `EncryptionServiceProvider` required `app.key` to be a raw 32-character string and threw `App Key must be 32 characters for AES-256` on the generated key, so `Crypt.encrypt`/`decrypt` were unusable out of the box. Added `MagicEncrypter.fromAppKey(appKey)` which base64-decodes a `base64:`-prefixed key to its 32 bytes (and still accepts a raw 32-character key); `EncryptionServiceProvider` now binds through it. Touches `lib/src/encryption/magic_encrypter.dart`, `lib/src/encryption/encryption_service_provider.dart`; adds three `fromAppKey` cases to `test/encryption/magic_encrypter_test.dart`.
 - **`MagicStatefulView` now calls the controller's `onInit()` lifecycle hook.** `MagicStatefulViewState.initState` listened to the controller and called the VIEW's own `onInit()` hook, but never invoked the CONTROLLER's `onInit()`, despite the documented contract. A controller that bootstraps in `onInit` (initial data load, table creation, subscriptions) silently never ran it when backed by a `MagicStatefulView`, so the screen rendered against uninitialized state (e.g. a query against a table the controller's `onInit` was supposed to create). It now calls `_controller.onInit()` guarded by `MagicController.initialized`, so a `SimpleMagicController` that already initialized in its constructor is not double-initialized and a singleton controller reused across re-mounts initializes exactly once per lifetime. Touches `lib/src/ui/magic_view.dart`; adds `test/ui/magic_view_controller_oninit_test.dart`.
 - **Auth no longer warns on every boot of a fresh app.** `AuthServiceProvider.boot()` logged a `userFactory not registered` warning (blaming provider order) whenever no userFactory was set, even for apps with no stored session to restore. It now only warns when a stored session actually exists (`Auth.hasToken()`) but cannot be rebuilt; a fresh app or a logged-out user stays quiet (debug-level). The stored-session check is guarded so a misconfigured Auth (for example, no Vault registered) cannot crash boot from this warning-verbosity path. Touches `lib/src/auth/auth_service_provider.dart`; adds three cases to `test/auth/auth_test.dart`.

pubspec.yaml

@@ -43,7 +43,7 @@ dependencies:
   timezone: ^0.11.0
   url_launcher: ^6.3.0
   logger: ^2.6.2
-  file_picker: ">=11.0.2 <13.0.0"
+  file_picker: ">=11.0.2 <12.0.0-0"
   image_picker: ^1.1.2
   faker: ^2.2.0
   web_socket_channel: ^3.0.0