Enhance sandbox functionality and MCP tools

This commit enhances the sandbox functionality by:
- Adding a new jj_log tool to retrieve commit history
- Refactoring sandbox tools into dedicated modules
- Improving project management with session-based active projects
- Updating Docker configuration to properly mount the sandbox volume
- Adding proper error handling and documentation for all tools
- Updating dependencies and configuration files

src/json_extract/__init__.py

@@ -1,5 +1,6 @@
 import json
 import re
+
 from ollama import prompt
 
 
@@ -21,8 +22,8 @@ def structure_to_json(text, schema):
     full_prompt = f"""Transform the following structured text into JSON according to the given schema.
 
 **Return only valid JSON, without any Markdown formatting :**
-    - no backticks, 
-    - no code blocks, 
+    - no backticks,
+    - no code blocks,
     - no extra text
 
 Input text:
@@ -32,7 +33,7 @@ Schema:
 {schema_json}"""
 
     # Send to Ollama
-    response = prompt("ollama:qwen3:0.6b", full_prompt, allow_pull=True)
+    response = prompt("qwen3:0.6b", full_prompt, allow_pull=True)
 
     # Remove any markdown formatting (backticks, code blocks) that Ollama might include
     # Only remove backticks at the beginning or end of the response, not those within the JSON