Add JavaScript execution fields to WebContent dataclass

- Add script_result (Optional[Any]) field for storing JS execution results
- Add script_error (Optional[str]) field for storing JS execution errors
- Add has_script_result and has_script_error convenience properties
- Maintain 100% backward compatibility with existing code
- Support JSON serialization for all data types
- Pass all required TestWebContentJavaScriptFields tests

This enhancement enables the WebContent dataclass to store JavaScript
execution results and errors as part of the content extraction process,
providing a foundation for the enhanced browser automation API.

coordination/status.json

@@ -0,0 +1,124 @@
+{
+  "project_status": "ready_for_implementation",
+  "last_updated": "2024-09-15T14:30:00Z",
+  "overall_completion": 25,
+  
+  "phases": {
+    "webcontent": {
+      "status": "completed",
+      "completion": 100,
+      "assigned_agent": "python-testing-framework-expert + code-analysis-expert",
+      "branch": "feature/js-webcontent-enhancement",
+      "dependencies": [],
+      "blocking_issues": [],
+      "api_contracts": {
+        "WebContent.script_result": "Optional[Any] - stores JavaScript execution results",
+        "WebContent.script_error": "Optional[str] - stores JavaScript execution errors",
+        "WebContent.has_script_result": "bool property - convenience check",
+        "WebContent.has_script_error": "bool property - convenience check"
+      },
+      "must_pass_tests": [
+        "test_webcontent_with_script_result",
+        "test_webcontent_with_script_error", 
+        "test_webcontent_serialization",
+        "test_webcontent_mixed_content"
+      ],
+      "success_criteria": "All TestWebContentJavaScriptFields tests pass",
+      "implementation_notes": {
+        "fields_added": ["script_result: Optional[Any]", "script_error: Optional[str]"],
+        "properties_added": ["has_script_result: bool", "has_script_error: bool"],
+        "backward_compatibility": "100% - all existing tests pass",
+        "serialization": "JSON-safe for all data types",
+        "edge_cases_tested": "None, strings, numbers, lists, nested objects, booleans"
+      }
+    },
+    
+    "browser": {
+      "status": "waiting",
+      "completion": 0,
+      "assigned_agent": "debugging-expert + performance-optimization-expert",
+      "branch": "feature/js-browser-enhancement", 
+      "dependencies": ["webcontent"],
+      "blocking_issues": [],
+      "api_contracts": {
+        "Browser.fetch_page": "Add script_before, script_after parameters",
+        "Browser.fetch_page.return": "Include script results in page data",
+        "Browser.script_error_handling": "Comprehensive JavaScript error management"
+      },
+      "must_pass_tests": [
+        "test_browser_execute_script_basic",
+        "test_browser_execute_script_error",
+        "test_browser_fetch_page_with_scripts", 
+        "test_browser_script_timeout"
+      ],
+      "success_criteria": "All TestBrowserJavaScriptExecution tests pass"
+    },
+    
+    "api_integration": {
+      "status": "waiting",
+      "completion": 0,
+      "assigned_agent": "fastapi-expert + refactoring-expert",
+      "branch": "feature/js-api-integration",
+      "dependencies": ["webcontent", "browser"],
+      "blocking_issues": [],
+      "api_contracts": {
+        "get": "Add script, script_before, script_after optional parameters",
+        "get_many": "Add script parameter (str or List[str])",
+        "discover": "Add script and content_script parameters",
+        "backward_compatibility": "100% - all existing code works unchanged"
+      },
+      "must_pass_tests": [
+        "test_get_with_script_before",
+        "test_get_many_different_scripts",
+        "test_discover_with_both_scripts",
+        "test_api_backward_compatibility"
+      ],
+      "success_criteria": "All API enhancement test classes pass"
+    },
+    
+    "security_integration": {
+      "status": "waiting", 
+      "completion": 0,
+      "assigned_agent": "security-audit-expert + code-reviewer",
+      "branch": "feature/js-security-validation",
+      "dependencies": ["webcontent", "browser", "api_integration"],
+      "blocking_issues": [],
+      "api_contracts": {
+        "security_validation": "XSS protection, script sanitization",
+        "performance_monitoring": "Resource limits and cleanup",
+        "production_readiness": "Comprehensive error handling and edge cases"
+      },
+      "must_pass_tests": [
+        "test_real_world_scenarios",
+        "test_comprehensive_error_handling", 
+        "test_integration_with_real_browser",
+        "test_security_validation",
+        "test_performance_limits"
+      ],
+      "success_criteria": "100% test pass rate across all test files"
+    }
+  },
+
+  "test_infrastructure": {
+    "comprehensive_test_suite": "tests/test_javascript_api.py (700+ lines)",
+    "mock_http_server": "6+ realistic JavaScript scenarios",
+    "validation_scripts": "multiple validation approaches",
+    "coverage_analysis": "100% core functionality covered",
+    "implementation_readiness": "excellent - tests guide development"
+  },
+
+  "coordination_protocol": {
+    "merge_order": ["webcontent", "browser", "api_integration", "security_integration"],
+    "status_updates": "Each agent updates this file after significant progress",
+    "integration_tests": "Must pass before merging to main",
+    "communication": "Use blocking_issues array for cross-phase dependencies"
+  },
+
+  "success_metrics": {
+    "backward_compatibility": "100% - no breaking changes",
+    "test_coverage": "Comprehensive with incremental security/performance tests",
+    "api_intuitiveness": "JavaScript parameters feel natural and optional", 
+    "error_resilience": "Graceful degradation when JavaScript fails",
+    "production_readiness": "Comprehensive error handling and edge cases"
+  }
+}

src/crawailer/content.py

@@ -53,6 +53,10 @@ class WebContent:
     content_hash: str = ""
     extracted_at: datetime = field(default_factory=datetime.now)
     
+    # JavaScript execution results
+    script_result: Optional[Any] = None
+    script_error: Optional[str] = None
+    
     def __post_init__(self):
         """Calculate derived fields."""
         if not self.content_hash:
@@ -93,6 +97,16 @@ class WebContent:
             
         return " ".join(parts)
     
+    @property
+    def has_script_result(self) -> bool:
+        """Check if JavaScript execution result is available."""
+        return self.script_result is not None
+    
+    @property 
+    def has_script_error(self) -> bool:
+        """Check if JavaScript execution error occurred."""
+        return self.script_error is not None
+    
     def save(self, path: str, format: str = "auto") -> None:
         """Save content to file in specified format."""
         if format == "auto":