New features:
- Standardized ModuleInitializer auto-registration across all RDBMS implementations
- Optional thread-local connection pooling via FAnsiConfiguration feature flag
- Connection management improvements with reusable connection parameter overloads

All changes are fully backward compatible.

See CHANGELOG.md for full details.

Version 3.3.3 of FAnsiSql.Legacy incorrectly referenced HIC.FAnsi.Sqlite
instead of FAnsiSql.Sqlite because it was built before the PackageId was
updated in commit d89ea9b. No code changes needed - rebuilding the package
automatically picks up the correct PackageId from the ProjectReference.

Fixes package dependency for FAnsiSql.Legacy.

- Add SQLite support as fifth database platform
- Fix MySQL PIVOT+TOP query syntax error (Issue #38)
- Fix FAnsiSql.Sqlite package metadata for correct NuGet publishing
- Remove hardcoded versions from all packages (MinVer handles versioning)
- Add SQLite AOT compatibility test (disabled pending upstream fixes)

Major improvements:
- BulkCopy colid mapping fix
- Removed unused LINQ provider (3000 lines, zero warnings)
- Split test projects for parallel execution (CI 47% faster)
- MinVer for automatic git tag-based versioning
- CI optimizations: apt/NuGet caching, faster Oracle image
- PostgreSQL via apt instead of Docker

CI time: 17 min → 9 min (47% reduction)

- Add CHANGELOG entry for Oracle NOCACHE fix
- Fix CHANGELOG: correct version (0.1.0 → 3.3.0) and date (Jan → Oct)
- Fix connection pooling dangling transaction detection (#30)
- Added IsConnectionAlive() and HasDanglingTransaction() methods to IDiscoveredServerHelper interface
- Oracle connections set CloseOnDispose=false to rely on ADO.NET's pooling lifecycle
- HasDanglingTransaction() catch blocks return false to avoid false positives
- Updated ManagedConnection.Dispose() to warn when disposing pooled connections with dangling transactions
- Pool validation checks for dangling transactions when retrieving connections and rejects dirty ones
- Added DatabaseExists() to IDiscoveredServerHelper with implementations for all databases
- Updated DiscoveredDatabase.Exists() to use optimized helper method
- Performance improvement: 80-95% reduction for servers with many databases
- Added virtual Exists() method to DiscoveredTableHelper base class
- Default implementation lists all tables (to be optimized per-database in future)
- CRITICAL FIX: DatabaseExists must connect to system database, not target
- Add server-level connection key helpers for future pooling