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Added

• Merged the Laravel integration (previously the standalone bradietilley/laravel-snowflake package) into this package under the BradieTilley\Snowflake\Laravel\ namespace.
• HasSnowflake Eloquent trait for automatically assigning Snowflake IDs to models.
• SnowflakeServiceProvider (auto-discovered) and a publishable snowflake config file.
• LaravelSequenceResolver for cache-based concurrency (atomic add + increment, no lock), and SequentialIdentifierResolver for predictable sequential IDs in tests.
• Snowflake::reset() to clear all static configuration and resolvers, primarily to avoid global state leaking between tests.
• Snowflake::configureSignature($workerIdBits, $clusterIdBits) to trade cluster/worker capacity for sequence bits (sequence bits are derived; minimum 3). The signature freezes after the first generated ID.

Changed

• The Laravel integration is fully opt-in. The core Snowflake generator has no framework dependency; illuminate/* packages are declared as suggest and dev-only requirements, so non-Laravel consumers are unaffected.
• The Laravel integration targets Laravel 13 (^13.0). This is developed and tested against orchestra/testbench: ^11.0.
• README now documents both standalone and Laravel usage in a single place.
• Default sequence resolver is now MemorySequenceResolver (was FileSequenceResolver). Opt into file or cache coordination explicitly.
• Laravel snowflake.sequencing.resolver defaults to null (memory). Set it to LaravelSequenceResolver::class (or another resolver) to auto-register on boot.

Fixed

• The Laravel cache-based sequence resolver is registered when configured. The previous laravel-snowflake package defined snowflake.sequencing.resolver but never wired it into Snowflake::sequenceResolver(). The SnowflakeGenerator now reads that config value and registers the resolver via the container when set.
• LaravelSequenceResolver no longer takes a global cache lock on every ID; it uses atomic add + increment per microsecond key.
• Resolved a PHPStan (max level) error in SequentialIdentifierResolver::identifier() where a nullable $group was used as an array key.

Breaking Changes

• Users of the old bradietilley/laravel-snowflake package must update namespaces from BradieTilley\Snowflakes\... to BradieTilley\Snowflake\Laravel\.... For example, BradieTilley\Snowflakes\Eloquent\HasSnowflake becomes BradieTilley\Snowflake\Laravel\Eloquent\HasSnowflake.
• The service provider was renamed from BradieTilley\Snowflakes\SnowflakesServiceProvider to BradieTilley\Snowflake\Laravel\SnowflakeServiceProvider. Auto-discovery handles this automatically; only manual provider registrations need updating.
• The Laravel integration now requires Laravel 13 (^13.0). Laravel 11 and 12 are no longer supported. The bradietilley/laravel-snowflake v1.x line remains available for Laravel 11/12 projects.
• Default sequence resolver is in-memory, not file-based. Multi-process apps sharing a worker id must call Snowflake::sequenceResolver(...) or set Laravel sequencing.resolver.
• Laravel no longer enables LaravelSequenceResolver by default; set snowflake.sequencing.resolver explicitly.
• Runtime bit widths are no longer read from Snowflake::WORKER_ID_BITS / CLUSTER_ID_BITS / SEQUENCE_BITS / MAX_SEQUENCE constants — use configureSignature() and the workerIdBits() / clusterIdBits() / sequenceBits() / maxSequence() getters.