supabase / supabase-swift / 23064833049

Pull #917

github

chore: set minimum Swift version to 6.1 and Xcode to 16.3+ for v3.0 (#918)

* chore: set minimum Swift version to 6.1 and Xcode to 16.3+ for v3.0

Update supabase-swift SDK minimum requirements from Swift 5.10/Xcode 15.3+
to Swift 6.1/Xcode 16.3+ for the v3.0 release. The codebase was already
well-prepared for Swift 6 with strict concurrency enabled, Sendable
conformance throughout, and modern async/await patterns.

## Changes

### Package & Documentation
- **Package.swift**: Updated swift-tools-version from 5.10 to 6.1
- **Package.swift**: Updated platform targets (iOS 16+, macOS 12+, tvOS 16+, watchOS 9+)
- **README.md**: Updated requirements to reflect Swift 6.1+ and Xcode 16.3+
- **AGENTS.md**: Updated development environment requirements

### Test Fixes for Swift 6 Concurrency
Fixed Swift 6 strict concurrency issues in test suite:
- **FunctionsClientTests**: Explicit capture of session in @Sendable closures
- **PostgresQueryTests**: Explicit capture of session in @Sendable closures
- **SupabaseStorageTests**: Explicit capture of supabaseURL in closures
- **AuthClientTests**: Explicit capture of sut in Task closures
- **SessionManagerTests**: Fixed capture list and Result type
- **RealtimeTests**: Explicit capture of client and sut in closures
- **CallbackManagerTests**: Added sending parameter to XCTAssertNoLeak
- **StorageBucketAPITests**: MainActor.assumeIsolated for XCTContext
- **MockHelpers**: Convert Dependencies.mock to computed property
- **PostgrestIntegrationTests**: Fixed ilike API (pattern: not value:)

## Testing
- Production code builds cleanly with Swift 6.1 ✅
- 558 tests executed, 547 passing (98% pass rate)
- 11 test failures related to stricter concurrency checks
- Library evolution build succeeds ✅

## What Benefits Swift 6.1 Brings
- Official language-level strict concurrency (not experimental)
- Better compile-time data race detection
- Improved optimization for async/await
- Type-safe existentials by default
- Enhanced actor... (continued)

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