feat(init): add transactional local iOS setup

[seanperez29]

Summary

• add deterministic mutation engines for installing ClerkKit products in Xcode projects
• add guarded Swift configuration and runtime publishable-key wiring for supported native project shapes
• add Associated Domains and entitlements project updates with byte-stable output
• compose file edits through stale-plan checks, dirty-file protection, postcondition validation, and rollback

Stack

• PR 1: feat(init): add iOS project inspection foundations #431 — iOS project inspection foundations
• PR 2 of 4: this PR
• PR 3: feat(init): reconcile native iOS configuration #439 — init orchestration and native reconciliation
• PR 4: feat(doctor): add native iOS diagnostics and Xcode checks #432 — iOS-aware doctor diagnostics

Review scope

This layer contains the local mutation engines only. It does not yet wire the behavior into the public init command or perform remote Clerk configuration.

Testing

• bun run format:check
• bun run lint
• bun run typecheck
• bun run test — 2,868 passing

[changeset-bot]

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Latest commit: 982f1a6

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