Refactor DbContext to use per-type internal storage (Dictionary<Type, Collection>)
instead of a single flat List<DbBase>, mirroring EF Core's DbSet<T> pattern.
Changes:
- Replace _tracked List<DbBase> with _tables Dictionary<Type, Collection<DbBase>>
- Add Table<T>() generic helper for compile-time known types (Find<T>)
- Add TableFor(Type) non-generic helper for Attach where type is only known at runtime
- Add instance-level Find<T>(Predicate<T>) method on DbContext that searches only
the per-type table for T (mirroring DbSet<T>.Find behavior)
- Keep Tracked { get } as a flattened view across all per-type tables (API compatible)
- IsTracked now walks all per-type tables
mostalive
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