docs: Update README and architecture documents with build instructions and detailed data models

docs/architecture/08_concepts.md

@@ -42,6 +42,10 @@ The domain model consists of the following key entities:
 - `Attachment`: Files associated with scenarios, such as documents or images.
 - `Version`: Tracks different versions of scenarios and their configurations.
 
+### Detailed Domain Models
+
+See [Domain Models](08_concepts/08_01_domain_models.md) document for detailed class diagrams and entity relationships.
+
 ## Data Model Highlights
 
 - `scenario`: central entity describing a mining scenario; owns relationships to cost, consumption, production, equipment, and maintenance tables.
@@ -53,3 +57,7 @@ The domain model consists of the following key entities:
 - `simulation_result`: staging table for future Monte Carlo outputs (not yet populated by `run_simulation`).
 
 Foreign keys secure referential integrity between domain tables and their scenarios, enabling per-scenario analytics.
+
+### Detailed Data Models
+
+See [Data Models](08_concepts/08_02_data_models.md) document for detailed ER diagrams and table descriptions.