Update README and add JSON typed path test queries

- Update README to note Dynamic/JSON support is not 100% yet
- Add JSON test queries with typed paths

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

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

Author: alex-clickhouse

README.md

@@ -6,7 +6,7 @@ A web-based tool for visualizing ClickHouse RowBinary data, similar to ImHex. Fe
 
 ## Features
 
-- Format support: RowBinary and Native, modular system allows adding more
+- **Format support**: RowBinary and Native (Dynamic and JSON are not 100% yet), modular system allows adding more
 - **Hex Viewer**: Virtual-scrolling hex display with ASCII column
 - **AST Tree**: Collapsible tree view showing decoded structure
 - **Interactive Highlighting**: Selecting a node in the tree highlights corresponding bytes in the hex view (and vice versa)

all_types_query.sql

@@ -133,6 +133,9 @@ SELECT
     -- ===========================================
     '{"name": "test", "value": 42}'::JSON as json_simple,
     '{"id": 1, "nested": {"x": 10, "y": 20}}'::JSON as json_nested,
+    '{"id": 1, "nested": {"x": 10, "y": 20}}'::JSON(a Int32) as json_partially_typed,
+    '{"id": 1 }'::JSON(a Int32) as json_fully_typed,
+    '{"ip": "127.0.0.1"}'::JSON(ip IPv4) as json_ipv4,
 
     -- ===========================================
     -- GEO TYPES