[flutter_tools] Track CLI option, bundle, and config refactoring #194338

Track migrating packages/flutter_tools CLI flags and god-object configurations from untyped string lookups in flutter_command.dart to typed OptionDescriptor<T>, OptionBundle, and domain specification structs:

• [flutter_tools] refactor CLI argument architecture with typed option descriptors and bundles (PoC) #191018 — Introduce OptionDescriptor<T>, OptionBundle, NullableFlagOptionDescriptor, SafeArgResults, and migrate build web (BuildWebOptionBundle, WebBuildSpecification).
• [flutter_tools] migrate getBuildInfo() to typed OptionDescriptors and BuildInfoOptionsBundle #191510 — Migrate FlutterCommand.getBuildInfo() string and containsKey lookups to BuildInfoOptions and BuildInfoOptionsBundle.
• [flutter_tools] add typed enum and defaulted option descriptors #191760 — Add EnumOptionDescriptor<T>, DefaultedEnumOptionDescriptor<T>, and DefaultedStringOptionDescriptor with CliEnum support; migrate WebOptions.pwaStrategy and CommonOptions.target.
• Refactor createDebuggingOptions and option registrations to OptionDescriptor #192307 — Migrate createDebuggingOptions(), usesWebOptions, addDdsOptions, and addDevToolsOptions to DebuggingOptionDescriptors and WebOptions with an Expando parser registry.
• feat(flutter_tools): add IntOptionDescriptor and DefaultedIntOptionDescriptor #192455 — Add IntOptionDescriptor and DefaultedIntOptionDescriptor; migrate --dds-port, --web-port, and --web-browser-debug-port.
• feat(flutter_tools): migrate Android build commands to typed options #192524 — Add AndroidGradleOptionsBundle and AndroidBuildOptionsBundle; migrate build apk, build appbundle, and build aar.
• feat(flutter_tools): migrate Apple build commands to typed options #192818 — Add AppleBuildOptionsBundle and DarwinCodeSignXCFrameworksOptionsBundle; migrate build ios, build ipa, build macos, build ios-framework, build macos-framework, and build swift-package.
• feat(flutter_tools): migrate Desktop build commands to typed options #193323 — Add DesktopBuildOptionsBundle; migrate build linux and build windows.
• feat(flutter_tools): introduce Test and Drive specification objects #194017 — Introduce TestExecutionSpecification, TestFilterSpecification, and DriveTestSpecification for FlutterTestRunner.runTests and DriverService.startTest.
• feat(flutter_tools): extract AndroidGradleConfig and move toGradleConfig to AndroidBuildInfo #194016 — Extract AndroidGradleConfig from BuildInfo and move toGradleConfig() to AndroidBuildInfo.
• feat(flutter_tools): extract WebDebugConfig from DebuggingOptions #194312 — Extract WebDebugConfig from DebuggingOptions.
• refactor(flutter_tools): share FlutterCommand options and OptionBundles #194356 — Share FlutterCommand option descriptors and add DeviceDiscoveryOptionsBundle, FilesystemOptionsBundle, VmServicePortOptionsBundle, DdsAndDevToolsOptionsBundle, ResidentCompilerOptionsBundle, and EngineRenderingFlagsBundle.
• refactor(flutter_tools): migrate AssembleCommand to OptionDescriptor #194358 — Migrate AssembleCommand to declarative option descriptors and bundles.
• refactor(flutter_tools): migrate AttachCommand to OptionDescriptor and OptionBundle #194359 — Migrate AttachCommand to declarative option descriptors and bundles.
• refactor(flutter_tools): finish DriveCommand OptionDescriptor migration #194360 — Finish DriveCommand option descriptor migration.
• refactor(flutter_tools): finish TestCommand OptionDescriptor and OptionBundle migration #194361 — Finish TestCommand option descriptor and bundle migration.
• refactor(flutter_tools): migrate RunCommand and RunCommandBase to OptionDescriptor and OptionBundle #194362 — Migrate RunCommand and RunCommandBase to declarative option descriptors and bundles.
• refactor(flutter_tools): remove legacy uses*/add* option registration helpers from FlutterCommand #194521 — Remove legacy uses*/add* option registration helpers from FlutterCommand.
• (Planned) Replace packages/flutter_tools/lib/src/runner/options/ with upstream package:args/typed.dart once published (draft PR: [args] Add core OptionDescriptor types and ArgResults lookup (1/3) dart-lang/core#1012).