Introduction of new skills

[XeonBloomfield]

Proposing the following skills:

• rn-new-architecture-migration - XCFramework distribution for brownfield iOS integration
• rn-testing-and-debugging - E2E testing and API failure simulation
• rn-native-ios-tooling - iOS native tooling guide

Skill	Reference	Description
rn-new-architecture-migration	XCFramework Distribution	Step-by-step: Swift Framework target, Build Settings, bridge initialization (old arch <0.78 + ReactNativeFactory 0.78+), Hermes embedding, dSYM fix, XFramework generation script, Swift Package distribution
rn-testing-and-debugging	Detox vs Maestro	Real-word comparison, Maestro YAML tests, CI setup with GitHub Actions, cost considerations, decision matrix
rn-testing-and-debugging	API Failure Simulation	MITMProxy + Redis + Next.js UI setup, filter.py Python addon, FoxyProxy integration, server-side interception with node-fetch
rn-native-ios-tooling	iOS Dependency Managers	SPM > Carthage > CocoaPods ranking with comparison table, CocoaPods lock-in warning
rn-native-ios-tooling	OSS Licensing Tools	AboutLibraries, LicensePlist, with-react-native-oss-notice, ORT, FoSSology
rn-native-ios-tooling	Objective-C to Swift Migration	Before/during/after checklist, bridging headers, Swift idioms, RN native module examples

[thymikee]

this project was last update 3 years ago, not sure if it still works. it's also a UI, it's gonna be challenging for agent to use it.

[thymikee]

if we can figure out how to convert steps 4 and 5 for agents and verify this works, then we should keep this skill. otherwise it's not actionable yet

[hongkongkiwi]

The two new reference documents contain broken relative links. skills/rn-native-ios-tooling/references/objc-to-swift-migration.md links to ./ios-dependency-managers.md and ./oss-licensing-tools.md, and skills/rn-testing-and-debugging/references/api-failure-simulation.md links to ./detox-vs-maestro.md; none of those files exists under the corresponding reference directories on this PR head. Add the missing files or point the links at the actual paths before merge.