An IA assisted dive into domain from legacy code

docs/deep-dive-any-domain.md

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+# <Any> Bundle Deep Dive
+
+## Ubiquitous Language
+Understand business terms, list them. 
+Propose adaptation if ambiguity.
+
+## Domain Core
+Identify what carries business meaning.
+Need key entities. What is domain/ application/infra (logic from legacy code is not DDD)
+
+Mainly in `src/.../[Entity, Model, Repository, Controller]/` paths
+
+## Invariants / Concistency
+Understand what's always be true, list them as rule.
+  
+## Cross-context Dependencies
+Map coupling in contexts of bundles.
+
+## DDD Slicing
+Define migration-safe target model.
+- Aggregates (target)
+- Value Objects (first candidates)
+- Domain services to extract
+- Repository interfaces (domain-facing)
+- Domain events (optional first)
+
+## Reading Order
+Fast onboarding for understanding bundle