State Management

Priority: P1 (HIGH)

1. Use Signals for All State

• Keep internal signals private; expose publicly via asReadonly().

See signal store pattern for signal-based service and store examples.

2. Derive State with computed()

• Use computed() for totals, filtered lists, derived values — pure and cached.
• Use linkedSignal(() => source()) for dependent writable state that resets when source changes.
• Use untracked() to read signal inside computed()/effect() without creating dependency.

3. Scale with Signal Store

• For complex features, use @ngrx/signals (signalStore) with withState, withComputed, withMethods, and withEntities().