feat: implement comprehensive query paradigm zoo system (issue #62)

- Created extensible BaseQueryParadigm interface with standardized QueryResult format
- Implemented QueryParadigmRegistry for paradigm discovery and management
- Added 5 working paradigms: SQL, FTS, GraphQL, JSONPath, Natural Language
- Documented 9 additional paradigms: QBE, Batch Manipulation, Visual Query Builder, REST API, NoSQL, UNIX Pipeline, XPath/XQuery, RAG, Data Transformation
- Integrated full CLI interface: list, search, show, exec, categories commands
- Added comprehensive test suite with 23 test cases covering all components
- Auto-registration system enables easy addition of new paradigms
- Organized paradigms by category (structural, textual, semantic, visual, procedural, network) and complexity (beginner, intermediate, advanced)

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

Co-Authored-By: Claude <noreply@anthropic.com>

markitect/query_paradigms/paradigms/nosql_paradigm.py

@@ -0,0 +1,88 @@
+"""
+NoSQL Query Languages Paradigm - MongoDB, Cypher, etc.
+"""
+
+import time
+from typing import Dict, Any, List, Optional
+
+from ..base import BaseQueryParadigm, QueryResult
+
+
+class NoSQLQueryParadigm(BaseQueryParadigm):
+    """NoSQL query paradigm for document and graph databases."""
+
+    @property
+    def name(self) -> str:
+        return "NoSQL Queries"
+
+    @property
+    def description(self) -> str:
+        return "MongoDB-style queries, Cypher for graph traversal, and other NoSQL query languages"
+
+    @property
+    def category(self) -> str:
+        return "structural"
+
+    @property
+    def complexity(self) -> str:
+        return "advanced"
+
+    def execute(self, query: str, config: Dict[str, Any] = None) -> QueryResult:
+        """Execute NoSQL query (not yet implemented)."""
+        start_time = time.time()
+        execution_time = (time.time() - start_time) * 1000
+
+        return QueryResult(
+            paradigm=self.name,
+            query=query,
+            execution_time_ms=execution_time,
+            result_count=0,
+            results=[],
+            metadata={
+                "status": "not_implemented",
+                "implementation_issue": "TBD - to be created",
+                "description": "NoSQL queries enable document and graph-based data access patterns"
+            },
+            success=False,
+            error_message="NoSQL Query paradigm not yet implemented."
+        )
+
+    def get_examples(self) -> List[Dict[str, str]]:
+        """Get example NoSQL queries."""
+        return [
+            {
+                "name": "MongoDB-style find",
+                "description": "Find documents with specific criteria",
+                "query": "db.files.find({author: 'Alice', tags: {$in: ['tutorial']}})"
+            },
+            {
+                "name": "Cypher graph traversal",
+                "description": "Find related files through tags",
+                "query": "MATCH (f:File)-[:HAS_TAG]->(t:Tag)<-[:HAS_TAG]-(related:File) WHERE f.author = 'Alice' RETURN related"
+            },
+            {
+                "name": "Aggregation pipeline",
+                "description": "MongoDB aggregation for statistics",
+                "query": "db.files.aggregate([{$group: {_id: '$author', count: {$sum: 1}}}, {$sort: {count: -1}}])"
+            }
+        ]
+
+    def validate_query(self, query: str) -> tuple[bool, Optional[str]]:
+        """Validate NoSQL query syntax."""
+        if not query.strip():
+            return False, "NoSQL query cannot be empty"
+        return True, None
+
+    def get_syntax_help(self) -> str:
+        """Get syntax help for NoSQL queries."""
+        return """NoSQL Query Syntax:
+
+MongoDB-style:
+db.collection.find({field: value})
+db.collection.aggregate([{$match: {field: value}}])
+
+Cypher (Neo4j):
+MATCH (n:Label) WHERE n.property = 'value' RETURN n
+
+Supported operations will include find, aggregate, graph traversal, and document manipulation.
+"""