fix(routing): resolve intermittent page title loss on web

[anilcancakir]

Summary

• Fix intermittent page title loss on web — Flutter's internal Title widget was overwriting TitleManager's route-level title via didChangeDependencies() on InheritedWidget changes (MediaQuery, Locale, Theme)
• Replace MaterialApp.router(title:) with onGenerateTitle that delegates to TitleManager.instance.effectiveTitle
• Also includes file_picker upgrade from ^10.3.10 to ^11.0.2 (static API migration, Android CWE-22 security fix)

Root Cause

MagicApplication passed a static title to MaterialApp.router, which Flutter wraps in a Title widget. On web, Title.didChangeDependencies() fires on every InheritedWidget change and calls SystemChrome.setApplicationSwitcherDescription with the static base title — overwriting TitleManager's route-level title. The race is intermittent because it depends on timing of MediaQuery/Locale/Theme updates during initial page load.

Changes

• lib/src/foundation/magic_app_widget.dart:210 — title: widget.title → onGenerateTitle: (_) => TitleManager.instance.effectiveTitle
• lib/src/facades/pick.dart — Migrate FilePicker.platform.method() → FilePicker.method() (4 call sites)
• pubspec.yaml — file_picker: ^10.3.10 → ^11.0.2

Test plan

• flutter test — 914 tests passed
• flutter test test/routing/title_manager_test.dart — 30 tests passed
• dart analyze — zero warnings
• dart format . --set-exit-if-changed — zero changes
• Plan verifier: APPROVE (both plans)
• Code review: APPROVED (file_picker plan)

Closes #44 (Dependabot file_picker PR — superseded by this PR which includes both the version bump and breaking API migration).

[Copilot]

Pull request overview

Fixes an intermittent Flutter web page-title regression where Flutter’s internal Title widget could overwrite Magic’s route-level titles, and updates the codebase for file_picker v11’s breaking API change.

Changes:

• Switch MaterialApp.router from a static title: to onGenerateTitle backed by TitleManager.instance.effectiveTitle to keep Flutter’s Title widget aligned with route-level title updates.
• Upgrade file_picker to ^11.0.2 and migrate facade call sites from FilePicker.platform.* to the new static FilePicker.* APIs.
• Update changelog and example lockfile to reflect the dependency/version updates.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pubspec.yaml	Bumps file_picker dependency to ^11.0.2.
lib/src/foundation/magic_app_widget.dart	Uses onGenerateTitle to prevent Flutter’s Title widget from clobbering TitleManager titles on web dependency changes.
lib/src/facades/pick.dart	Migrates file picking calls to file_picker v11 static APIs.
example/pubspec.lock	Updates resolved package versions/hashes for the example app after dependency changes.
CHANGELOG.md	Documents the routing title fix and the file_picker upgrade under Unreleased.

[sentry]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
lib/src/foundation/magic_app_widget.dart	0.00%	1 Missing ⚠️

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