chore(docs): remove core entities and technical specifications section

README.md

@@ -18,81 +18,6 @@ Cala is a robust ledger system developed by Galoy, designed to handle complex fi
 - **Transaction Templates**: Customizable transaction templates for common financial operations
 - **Multi-Currency Support**: Handle transactions across different currencies
 
-### Core Entities
-
-#### Accounts
-
-- Unique identification via UUID and optional external IDs
-- Configurable normal balance type (debit/credit)
-- Version-controlled with status tracking (active/locked)
-- Rich metadata support with JSON fields
-- Balance queries with currency and time-range filtering
-
-#### Account Sets
-
-- Hierarchical account grouping with nested set support
-- Journal-scoped for organizational separation
-- Consolidated balance reporting across member accounts
-- Flexible member management (add/remove operations)
-
-#### Journals
-
-- Independent ledger contexts for transaction isolation
-- Support for multiple concurrent journals
-- Transaction correlation and external ID tracking
-
-#### Transactions
-
-- Template-based transaction creation
-- Effective dating support
-- Correlation ID for transaction linking
-- Multi-layer support (settled/pending/encumbrance)
-- Rich metadata and external ID tracking
-
-#### Velocity Controls
-
-- Configurable transaction limits
-- Balance-based and time-based controls
-- Multiple limit aggregation support
-- Flexible control attachment to accounts/sets
-
-### Technical Specifications
-
-#### Query Interface
-
-- Point lookups by UUID, external ID, and code
-- Cursor-based pagination with configurable page sizes
-- Balance queries with time range support
-- Comprehensive transaction search
-
-#### Type System
-
-- Strong typing with custom scalars (UUID, Timestamp, Date)
-- JSON support for flexible metadata
-- Decimal type for precise financial calculations
-- Expression-based template parameters
-
-#### Implementation Details
-
-- Consistent versioning across all entities
-- Optimistic concurrency control
-- Immutable audit fields (createdAt, modifiedAt)
-- Rich error handling and validation
-
-#### Developer Experience
-
-- Interactive GraphQL playground at `http://localhost:2252/graphql`
-- Built-in schema documentation
-- Query validation and type checking
-
-## Components
-
-- `cala-ledger`: Core ledger implementation
-- `cala-server`: Server implementation handling API requests
-- `cala-nodejs`: Node.js bindings for integration with JavaScript/TypeScript applications
-- `cala-cel-interpreter` & `cala-cel-parser`: Common Expression Language (CEL) support
-- `cala-tracing`: Tracing and monitoring functionality
-
 ## Developing
 
 ### Dependencies