feat(cosmosdb): add comparison and bitwise shift operators (#42)

* feat(cosmosdb): add comparison and bitwise shift operators

Add support for comparison operators (<, <=, >, >=) and bitwise shift operators (<<, >>, >>>) to the CosmosDB parser grammar.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

* fix(cosmosdb): remove duplicate angle bracket tokens to resolve lexer conflicts

Remove LA_BRACKET_SYMBOL and RA_BRACKET_SYMBOL tokens that were conflicting with LESS_THAN_OPERATOR and GREATER_THAN_OPERATOR. The angle bracket symbols are now properly defined as comparison operators.

This fixes ANTLR warnings about unreachable token values.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

* chore: add bitwise operators in where clause

Signed-off-by: h3n4l <[email protected]>

---------

Signed-off-by: h3n4l <[email protected]>
Co-authored-by: Claude <[email protected]>

Author: h3n4l

cosmosdb/CosmosDBLexer.g4

@@ -70,6 +70,14 @@ BIT_OR_SYMBOL: '|';
 DOUBLE_BAR_SYMBOL: '||';
 BIT_XOR_SYMBOL: '^';
 EQUAL_SYMBOL: '=';
+LESS_THAN_OPERATOR: '<';
+LESS_THAN_EQUAL_OPERATOR: '<=';
+GREATER_THAN_OPERATOR: '>';
+GREATER_THAN_EQUAL_OPERATOR: '>=';
+LEFT_SHIFT_OPERATOR: '<<';
+RIGHT_SHIFT_OPERATOR: '>>';
+ZERO_FILL_RIGHT_SHIFT_OPERATOR: '>>>';
+
 
 /* Identifiers */
 IDENTIFIER: [a-z] [a-z_0-9]*;

cosmosdb/CosmosDBParser.g4

@@ -97,7 +97,15 @@ binary_operator:
 	| BIT_XOR_SYMBOL
 	| BIT_OR_SYMBOL
 	| DOUBLE_BAR_SYMBOL
-	| EQUAL_SYMBOL;
+	| EQUAL_SYMBOL
+	| LESS_THAN_OPERATOR
+	| LESS_THAN_EQUAL_OPERATOR
+	| GREATER_THAN_OPERATOR
+	| GREATER_THAN_EQUAL_OPERATOR
+	| LEFT_SHIFT_OPERATOR
+	| RIGHT_SHIFT_OPERATOR
+	| ZERO_FILL_RIGHT_SHIFT_OPERATOR
+	;
 
 unary_operator: BIT_NOT_SYMBOL | PLUS_SYMBOL | MINUS_SYMBOL;