FMWK-729 Restructure API and ConditionVisitor, build Filter and Exp in one run

[agrgr]

• return one Filter
• have one ConditionVisitor
• build both Exp and Filter after the resulting tree is ready
• update processing logical structures, control structures and unary operators
• use namespace provided in parameters
• convert Collection of indexes provided in parameters into a Map
• update API

[Copilot]

Pull Request Overview

This PR restructures the DSL API by consolidating expression and filter building in one run while removing legacy model classes and updating the AbstractPart hierarchy. Key changes include:

• Moving and updating classes from the model package to the parts package, notably AbstractPart now uses Filter instead of SIndexFilter.
• Removing legacy operand and CDT classes and introducing new classes (ParsedExpression, ParseResult, IndexContext, and Index) to support the updated API.
• Updating the DSLParser and its implementation to integrate the new processing logic and API flow.

Reviewed Changes

Copilot reviewed 86 out of 86 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/main/java/com/aerospike/dsl/parts/cdt/CdtPart.java	New abstract class for CDT parts with updated error reporting.
src/main/java/com/aerospike/dsl/parts/ExpressionContainer.java	New class representing expression containers with unary and binary operators.
src/main/java/com/aerospike/dsl/parts/AbstractPart.java	Updated to replace SIndexFilter with Filter and adjust constructors accordingly.
src/main/java/com/aerospike/dsl/model/*	Multiple legacy files removed (CdtPart, VariableOperand, StringOperand, SIndexFilter, ParsedOperand, MapOperand, ListOperand, IntOperand, Expr, AerospikeDSLException).
src/main/java/com/aerospike/dsl/ParsedExpression.java, ParseResult.java, IndexContext.java, Index.java, DslParseException.java	New classes to support the updated DSL parsing and processing API.
src/main/java/com/aerospike/dsl/DSLParserImpl.java, DSLParser.java	Redesigned methods to return ParsedExpression and support index context handling.