TASK-P3-009: Create arcadedb-index-core Module

[robfrank]

Task Details

Epic: #2977 (Phase 3: Modularity)
Priority: HIGH
Effort: 3 days
Dependencies: TASK-P3-005

Description

Extract index interfaces (~15 files) to separate module for index abstraction layer.

Steps

1. Create arcadedb-index-core module
2. Move index interfaces and base classes:
   • Index, IndexInternal
   • IndexCursor, IndexFactory
   • RangeIndex, TypeIndex
3. Update dependencies
4. Fix imports
5. Update tests
6. Verify compilation

Files to Create

• index-core/pom.xml
• index-core/src/main/java/com/arcadedb/index/**

Classes to Move (from engine)

• com.arcadedb.index.Index* (interfaces)
• com.arcadedb.index.IndexFactory
• ~15 index core files

Dependencies

<dependencies>
    <dependency>
        <groupId>com.arcadedb</groupId>
        <artifactId>arcadedb-api</artifactId>
    </dependency>
    <dependency>
        <groupId>com.arcadedb</groupId>
        <artifactId>arcadedb-schema</artifactId>
    </dependency>
</dependencies>

Acceptance Criteria

• index-core module created
• ~15 index files moved
• Compiles successfully
• Tests pass