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      "notes": {
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          "step": "step-03-backend-generation",
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          "label": "backend_gen",
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        {
          "step": "step-03-backend-generation",
          "model": "global.anthropic.claude-sonnet-4-5-20250929-v1:0",
          "label": "backend_gen",
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    },
    {
      "name": "step-04-ir-generation",
      "started_at": "2026-05-07T05:06:57+00:00",
      "duration_ms": 294925.4,
      "status": "failed",
      "error": "RuntimeError('Failed to generate IRBundle for page \\'bmi_calculator\\' after 3 attempts.\\nLast validation error: 3 validation errors for IRBundle\\npage_ir.responsive.breakpoints.mobile\\n  Input should be a valid integer, unable to parse string as an integer [type=int_parsing, input_value=\\'320px\\', input_type=str]\\n    For further information visit https://errors.pydantic.dev/2.13/v/int_parsing\\npage_ir.responsive.breakpoints.tablet\\n  Input should be a valid integer, unable to parse string as an integer [type=int_parsing, input_value=\\'768px\\', input_type=str]\\n    For further information visit https://errors.pydantic.dev/2.13/v/int_parsing\\npage_ir.responsive.breakpoints.desktop\\n  Input should be a valid integer, unable to parse string as an integer [type=int_parsing, input_value=\\'1024px\\', input_type=str]\\n    For further information visit https://errors.pydantic.dev/2.13/v/int_parsing\\nLast model output:\\n```json\\n{\\n  \"page_ir\": {\\n    \"page_id\": \"bmi_calculator\",\\n    \"page_goal\": \"Single-page BMI Calculator allowing users to calculate BMI, view results with category classification, manage calculation history, and access BMI information\",\\n    \"style\": {\\n      \"tone\": \"clean and informative\",\\n      \"theme\": \"light\",\\n      \"density\": \"comfortable\",\\n      \"color_intent\": \"health-focused with category color coding\"\\n    },\\n    \"accessibility\": {\\n      \"required_labels\": [\"height_input\", \"weight_input\", \"unit_system_toggle\", \"calculate_button\", \"reset_button\", \"clear_history_button\"]\\n    },\\n    \"responsive\": {\\n      \"breakpoints\": {\\n        \"mobile\": \"320px\",\\n        \"tablet\": \"768px\",\\n        \"desktop\": \"1024px\"\\n      },\\n      \"collapse_rules\": [\"bmi_scale stacks vertically on mobile\", \"history entries use compact layout on mobile\"],\\n      \"hidden_on_small\": []\\n    },\\n    \"constraints\": [\"All data persisted in localStorage\", \"Keyboard accessible\", \"WCAG AA color contrast\"]\\n  },\\n  \"data_ir\": {\\n    \"state\": {\\n      \"bmiResult\": {\\n        \"type\": \"object\",\\n        \"initial\": null,\\n        \"required\": false,\\n        \"constraints\": {}\\n      },\\n      \"showResult\": {\\n        \"type\": \"boolean\",\\n        \"initial\": false,\\n        \"required\": false,\\n        \"constraints\": {}\\n      },\\n      \"isCalculating\": {\\n        \"type\": \"boolean\",\\n        \"initial\": false,\\n        \"required\": false,\\n        \"constraints\": {}\\n      },\\n      \"clearHistoryModalVisible\": {\\n        \"type\": \"boolean\",\\n        \"initial\": false,\\n        \"required\": false,\\n        \"constraints\": {}\\n      },\\n      \"bmiCategories\": {\\n        \"type\": \"array\",\\n        \"initial\": [],\\n        \"required\": false,\\n        \"constraints\": {}\\n      },\\n      \"infoExpanded\": {\\n        \"type\": \"boolean\",\\n        \"initial\": false,\\n        \"required\": false,\\n        \"constraints\": {}\\n      }\\n    },\\n    \"derived\": {\\n      \"heightLabel\": {\\n        \"type\": \"string\",\\n        \"expr\": \"appContext.unitSystem === \\'metric\\' ? \\'Height (cm)\\' : \\'Height (inches)\\'\"\\n      },\\n      \"weightLabel\": {\\n        \"type\": \"string\",\\n        \"expr\": \"appContext.unitSystem === \\'metric\\' ? \\'Weight (kg)\\' : \\'Weight (lbs)\\'\"\\n      },\\n      \"heightPlaceholder\": {\\n        \"type\": \"string\",\\n        \"expr\": \"appContext.unitSystem === \\'metric\\' ? \\'e.g. 175\\' : \\'e.g. 69\\'\"\\n      },\\n      \"weightPlaceholder\": {\\n        \"type\": \"string\",\\n        \"expr\": \"appContext.unitSystem === \\'metric\\' ? \\'e.g. 70\\' : \\'e.g. 154\\'\"\\n      },\\n      \"sortedHistory\": {\\n        \"type\": \"array\",\\n        \"expr\": \"[...appContext.calculationHistory].sort((a, b) => new Date(b.timestamp) - new Date(a.timestamp))\"\\n      },\\n      \"hasHistory\": {\\n        \"type\": \"boolean\",\\n        \"expr\": \"appContext.calculationHistory.length > 0\"\\n      }\\n    }\\n  },\\n  \"data_model_ir\": {\\n    \"entities\": {\\n      \"session\": {\\n        \"name\": \"Session\",\\n        \"backend_module\": \"Sessions\",\\n        \"fields\": [\"id\", \"session_id\", \"created_at\", \"updated_at\", \"last_activity_at\", \"calculation_count\"],\\n        \"computed\": [],\\n        \"display_fields\": [\"session_id\", \"calculation_count\", \"last_activity_at\"],\\n        \"filters\": []\\n      },\\n      \"bmi_category\": {\\n        \"name\": \"BMI Category\",\\n        \"backend_module\": \"BMI Categories\",\\n        \"fields\": [\"id\", \"name\", \"min_value\", \"max_value\", \"description\", \"color_code\", \"created_at\", \"updated_at\"],\\n        \"computed\": [],\\n        \"display_fields\": [\"name\", \"min_value\", \"max_value\", \"description\", \"color_code\"],\\n        \"filters\": []\\n      }\\n    }\\n  },\\n  \"data_fetch_ir\": {\\n    \"endpoints\": [\\n      {\\n        \"endpoint_id\": \"fetchBmiCategories\",\\n        \"module\": \"BMI Categories\",\\n        \"endpoint\": \"/bmi-categories/\",\\n        \"method\": \"GET\",\\n        \"path_params\": {},\\n        \"query_params\": { \"limit\": 50 },\\n        \"body\": null,\\n        \"fields\": [\"id\", \"name\", \"min_value\", \"max_value\", \"description\", \"color_code\"],\\n        \"response_target\": \"bmiCategories\",\\n        \"trigger\": \"on_mount\"\\n      },\\n      {\\n        \"endpoint_id\": \"createSession\",\\n        \"module\": \"Sessions\",\\n        \"endpoint\": \"/sessions/\",\\n        \"method\": \"POST\",\\n        \"path_params\": {},\\n        \"query_params\": {},\\n        \"body\": { \"session_id\": \"$state.appContext.sessionId\" },\\n        \"fields\": [\"id\", \"session_id\", \"created_at\"],\\n        \"response_target\": \"session\",\\n        \"trigger\": \"manual\"\\n      },\\n      {\\n        \"endpoint_id\": \"fetchSessionHistory\",\\n        \"module\": \"Sessions\",\\n        \"endpoint\": \"/sessions/{session_id}/history\",\\n        \"method\": \"GET\",\\n        \"path_params\": { \"session_id\": \"$state.appContext.sessionId\" },\\n        \"query_params\": {},\\n        \"body\": null,\\n        \"fields\": [\"id\", \"session_id\", \"calculations\"],\\n        \"response_target\": \"sessionHistory\",\\n        \"trigger\": \"on_mount\"\\n      },\\n      {\\n        \"endpoint_id\": \"clearSessionHistory\",\\n        \"module\": \"Sessions\",\\n        \"endpoint\": \"/sessions/{session_id}/history\",\\n        \"method\": \"DELETE\",\\n        \"path_params\": { \"session_id\": \"$state.appContext.sessionId\" },\\n        \"query_params\": {},\\n        \"body\": null,\\n        \"fields\": [],\\n        \"response_target\": null,\\n        \"trigger\": \"manual\"\\n      }\\n    ]\\n  },\\n  \"behaviour_ir\": {\\n    \"events\": {\\n      \"onUnitSystemChange\": {\\n        \"type\": \"mutation\",\\n        \"updates\": [\\n          { \"target\": \"appContext.unitSystem\", \"expr\": \"event.value\" }\\n        ]\\n      },\\n      \"onResultAnimationComplete\": {\\n        \"type\": \"mutation\",\\n        \"updates\": [\\n          { \"target\": \"state.showResult\", \"expr\": \"true\" }\\n        ]\\n      }\\n    },\\n    \"actions\": {\\n      \"calculateBmi\": {\\n        \"action_id\": \"calculateBmi\",\\n        \"trigger\": \"form_submit\",\\n        \"target_component_id\": \"calculate_button\",\\n        \"operation\": \"custom\",\\n        \"payload\": {},\\n        \"validation_rules\": [\\n          { \"rule_id\": \"val_height_required\", \"field\": \"height\", \"type\": \"required\", \"message\": \"Height is required\" },\\n          { \"rule_id\": \"val_weight_required\", \"field\": \"weight\", \"type\": \"required\", \"message\": \"Weight is required\" },\\n          { \"rule_id\": \"val_height_min_metric\", \"field\": \"height\", \"type\": \"min\", \"value\": 50, \"message\": \"Height must be at least 50 cm\", \"condition\": \"appContext.unitSystem === \\'metric\\'\" },\\n          { \"rule_id\": \"val_height_max_metric\", \"field\": \"height\", \"type\": \"max\", \"value\": 300, \"message\": \"Height must not exceed 300 cm\", \"condition\": \"appContext.unitSystem === \\'metric\\'\" },\\n          { \"rule_id\": \"val_height_min_imperial\", \"field\": \"height\", \"type\": \"min\", \"value\": 20, \"message\": \"Height must be at least 20 inches\", \"condition\": \"appContext.unitSystem === \\'imperial\\'\" },\\n          { \"rule_id\": \"val_height_max_imperial\", \"field\": \"height\", \"type\": \"max\", \"value\": 120, \"message\": \"Height must not exceed 120 inches\", \"condition\": \"appContext.unitSystem === \\'imperial\\'\" },\\n          { \"rule_id\": \"val_weight_min_metric\", \"field\": \"weight\", \"type\": \"min\", \"value\": 10, \"message\": \"Weight must be at least 10 kg\", \"condition\": \"appContext.unitSystem === \\'metric\\'\" },\\n          { \"rule_id\": \"val_weight_max_metric\", \"field\": \"weight\", \"type\": \"max\", \"value\": 500, \"message\": \"Weight must not exceed 500 kg\", \"condition\": \"appContext.unitSystem === \\'metric\\'\" },\\n          { \"rule_id\": \"val_weight_min_imperial\", \"field\": \"weight\", \"type\": \"min\", \"value\": 20, \"message\": \"Weight must be at least 20 lbs\", \"condition\": \"appContext.unitSystem === \\'imperial\\'\" },\\n          { \"rule_id\": \"val_weight_max_imperial\", \"field\": \"weight\", \"type\": \"max\", \"value\": 1100, \"message\": \"Weight must not exceed 1100 lbs\", \"condition\": \"appContext.unitSystem === \\'imperial\\'\" }\\n        ],\\n        \"requires_confirmation\": false,\\n        \"updates\": [\\n          { \"target\": \"state.isCalculating\", \"expr\": \"true\" },\\n          { \"target\": \"state.bmiResult\", \"expr\": \"computedBmiResult\" },\\n          { \"target\": \"state.showResult\", \"expr\": \"true\" },\\n          { \"target\": \"state.isCalculating\", \"expr\": \"false\" },\\n          { \"target\": \"appContext.calculationHistory\", \"expr\": \"[...appContext.calculationHistory, newCalculation]\" }\\n        ],\\n        \"side_effects\": [\\n          { \"type\": \"toast\", \"config\": { \"message\": \"BMI calculated successfully!\", \"type\": \"success\" } }\\n        ],\\n        \"data_action\": null\\n      },\\n      \"resetForm\": {\\n        \"action_id\": \"resetForm\",\\n        \"trigger\": \"button_click\",\\n        \"target_component_id\": \"reset_button\",\\n        \"operation\": \"custom\",\\n        \"payload\": {},\\n        \"validation_rules\": [],\\n        \"requires_confirmation\": false,\\n        \"updates\": [\\n          { \"target\": \"state.bmiResult\", \"expr\": \"null\" },\\n          { \"target\": \"state.showResult\", \"expr\": \"false\" }\\n        ],\\n        \"side_effects\": [\\n          { \"type\": \"reset_state\", \"config\": { \"fields\": [\"bmiResult\", \"showResult\"] } }\\n        ],\\n        \"data_action\": null\\n      },\\n      \"deleteHistoryEntry\": {\\n        \"action_id\": \"deleteHistoryEntry\",\\n        \"trigger\": \"button_click\",\\n        \"target_component_id\": \"history_list\",\\n        \"operation\": \"delete\",\\n        \"payload\": { \"entryId\": \"$event.entryId\" },\\n        \"validation_rules\": [],\\n        \"requires_confirmation\": false,\\n        \"updates\": [\\n          { \"target\": \"appContext.calculationHistory\", \"expr\": \"appContext.calculationHistory.filter(item => item.id !== payload.entryId)\" }\\n        ],\\n        \"side_effects\": [\\n          { \"type\": \"toast\", \"config\": { \"message\": \"Entry removed\", \"type\": \"info\" } }\\n        ],\\n        \"data_action\": null\\n      },\\n      \"openClearHistoryModal\": {\\n        \"action_id\": \"openClearHistoryModal\",\\n        \"trigger\": \"button_click\",\\n        \"target_component_id\": \"clear_all_button\",\\n        \"operation\": \"custom\",\\n        \"payload\": {},\\n        \"validation_rules\": [],\\n        \"requires_confirmation\": false,\\n        \"updates\": [\\n          { \"target\": \"state.clearHistoryModalVisible\", \"expr\": \"true\" }\\n        ],\\n        \"side_effects\": [\\n          { \"type\": \"modal_open\", \"config\": { \"modal_id\": \"clear_history_modal\" } }\\n        ],\\n        \"data_action\": null\\n      },\\n      \"confirmClearHistory\": {\\n        \"action_id\": \"confirmClearHistory\",\\n        \"trigger\": \"button_click\",\\n        \"target_component_id\": \"confirm_clear_button\",\\n        \"operation\": \"delete\",\\n        \"payload\": {},\\n        \"validation_rules\": [],\\n        \"requires_confirmation\": false,\\n        \"updates\": [\\n          { \"target\": \"appContext.calculationHistory\", \"expr\": \"[]\" },\\n          { \"target\": \"state.clearHistoryModalVisible\", \"expr\": \"false\" }\\n        ],\\n        \"side_effects\": [\\n          { \"type\": \"modal_close\", \"config\": { \"modal_id\": \"clear_history_modal\" } },\\n          { \"type\": \"toast\", \"config\": { \"message\": \"All history cleared\", \"type\": \"success\" } }\\n        ],\\n        \"api_endpoint\": \"clearSessionHistory\",\\n        \"data_action\": null\\n      },\\n      \"cancelClearHistory\": {\\n        \"action_id\": \"cancelClearHistory\",\\n        \"trigger\": \"button_click\",\\n        \"target_component_id\": \"cancel_clear_button\",\\n        \"operation\": \"custom\",\\n        \"payload\": {},\\n        \"validation_rules\": [],\\n        \"requires_confirmation\": false,\\n        \"updates\": [\\n          { \"target\": \"state.clearHistoryModalVisible\", \"expr\": \"false\" }\\n        ],\\n        \"side_effects\": [\\n          { \"type\": \"modal_close\", \"config\": { \"modal_id\": \"clear_history_modal\" } }\\n        ],\\n        \"data_action\": null\\n      },\\n      \"toggleInfoPanel\": {\\n        \"action_id\": \"toggleInfoPanel\",\\n        \"trigger\": \"button_click\",\\n        \"target_component_id\": \"info_collapse\",\\n        \"operation\": \"custom\",\\n        \"payload\": {},\\n        \"validation_rules\": [],\\n        \"requires_confirmation\": false,\\n        \"updates\": [\\n          { \"target\": \"state.infoExpanded\", \"expr\": \"!state.infoExpanded\" }\\n        ],\\n        \"side_effects\": [],\\n        \"data_action\": null\\n      }\\n    },\\n    \"feedback\": {\\n      \"calculateBmi\": {\\n        \"action_id\": \"calculateBmi\",\\n        \"loading_indicator\": \"spinner\",\\n        \"success_message\": \"BMI calculated successfully!\",\\n        \"error_message\": \"Failed to calculate BMI. Please check your inputs.\",\\n        \"ui_updates\": [\"show_result_section\"]\\n      },\\n      \"resetForm\": {\\n        \"action_id\": \"resetForm\",\\n        \"loading_indicator\": null,\\n        \"success_message\": null,\\n        \"error_message\": null,\\n        \"ui_updates\": [\"hide_result_section\"]\\n      },\\n      \"deleteHistoryEntry\": {\\n        \"action_id\": \"deleteHistoryEntry\",\\n        \"loading_indicator\": null,\\n        \"success_message\": \"Entry removed\",\\n        \"error_message\": \"Failed to remove entry\",\\n        \"ui_updates\": [\"refresh_history_list\"]\\n      },\\n      \"confirmClearHistory\": {\\n        \"action_id\": \"confirmClearHistory\",\\n        \"loading_indicator\": \"spinner\",\\n        \"success_message\": \"All history cleared\",\\n        \"error_message\": \"Failed to clear history\",\\n        \"ui_updates\": [\"refresh_history_list\", \"close_modal\"]\\n      },\\n      \"openClearHistoryModal\": {\\n        \"action_id\": \"openClearHistoryModal\",\\n        \"loading_indicator\": null,\\n        \"success_message\": null,\\n        \"error_message\": null,\\n        \"ui_updates\": []\\n      },\\n      \"cancelClearHistory\": {\\n        \"action_id\": \"cancelClearHistory\",\\n        \"loading_indicator\": null,\\n        \"success_message\": null,\\n        \"error_message\": null,\\n        \"ui_updates\": []\\n      },\\n      \"toggleInfoPanel\": {\\n        \"action_id\": \"toggleInfoPanel\",\\n        \"loading_indicator\": null,\\n        \"success_message\": null,\\n        \"error_message\": null,\\n        \"ui_updates\": []\\n      }\\n    }\\n  },\\n  \"component_ir\": {\\n    \"library\": \"antd\",\\n    \"theme\": {\\n      \"primaryColor\": \"#3B82F6\",\\n      \"secondaryColor\": \"#10B981\",\\n      \"fontFamily\": \"sans-serif\",\\n      \"borderRadius\": 8\\n    },\\n    \"components\": {\\n      \"main_container\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"className\": \"bmi-calculator-page\" },\\n        \"styles\": { \"minHeight\": \"100vh\", \"width\": \"100%\", \"padding\": \"24px\", \"maxWidth\": \"800px\", \"margin\": \"0 auto\" }\\n      },\\n      \"page_header\": {\\n        \"type\": \"Typography.Title\",\\n        \"label\": \"BMI Calculator\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"level\": 2, \"style\": { \"textAlign\": \"center\", \"marginBottom\": \"8px\" } },\\n        \"styles\": {}\\n      },\\n      \"page_subtitle\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": \"Calculate your Body Mass Index quickly and easily\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"type\": \"secondary\", \"style\": { \"display\": \"block\", \"textAlign\": \"center\", \"marginBottom\": \"32px\" } },\\n        \"styles\": {}\\n      },\\n      \"calculator_card\": {\\n        \"type\": \"Card\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"Calculate Your BMI\", \"bordered\": true },\\n        \"styles\": { \"marginBottom\": \"24px\" }\\n      },\\n      \"unit_system_segment\": {\\n        \"type\": \"Segmented\",\\n        \"label\": \"Unit System\",\\n        \"bind\": \"appContext.unitSystem\",\\n        \"onClick\": \"onUnitSystemChange\",\\n        \"props\": { \"options\": [{ \"label\": \"Metric\", \"value\": \"metric\" }, { \"label\": \"Imperial\", \"value\": \"imperial\" }], \"block\": true, \"size\": \"large\" },\\n        \"styles\": { \"marginBottom\": \"24px\" }\\n      },\\n      \"bmi_form\": {\\n        \"type\": \"Form\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"layout\": \"vertical\", \"name\": \"bmi_calculator_form\" },\\n        \"styles\": {}\\n      },\\n      \"height_input\": {\\n        \"type\": \"Form.Item\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"name\": \"height\", \"label\": \"$derived.heightLabel\", \"rules\": [{ \"required\": true, \"message\": \"Please enter your height\" }, { \"type\": \"number\", \"message\": \"Please enter a valid number\" }] },\\n        \"styles\": {}\\n      },\\n      \"height_input_number\": {\\n        \"type\": \"InputNumber\",\\n        \"label\": null,\\n        \"bind\": \"form.height\",\\n        \"onClick\": null,\\n        \"props\": { \"placeholder\": \"$derived.heightPlaceholder\", \"style\": { \"width\": \"100%\" }, \"size\": \"large\", \"min\": 0, \"precision\": 2, \"aria-label\": \"Height input\" },\\n        \"styles\": {}\\n      },\\n      \"weight_input\": {\\n        \"type\": \"Form.Item\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"name\": \"weight\", \"label\": \"$derived.weightLabel\", \"rules\": [{ \"required\": true, \"message\": \"Please enter your weight\" }, { \"type\": \"number\", \"message\": \"Please enter a valid number\" }] },\\n        \"styles\": {}\\n      },\\n      \"weight_input_number\": {\\n        \"type\": \"InputNumber\",\\n        \"label\": null,\\n        \"bind\": \"form.weight\",\\n        \"onClick\": null,\\n        \"props\": { \"placeholder\": \"$derived.weightPlaceholder\", \"style\": { \"width\": \"100%\" }, \"size\": \"large\", \"min\": 0, \"precision\": 2, \"aria-label\": \"Weight input\" },\\n        \"styles\": {}\\n      },\\n      \"form_buttons_container\": {\\n        \"type\": \"Space\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"size\": \"middle\", \"style\": { \"width\": \"100%\", \"justifyContent\": \"center\" } },\\n        \"styles\": { \"display\": \"flex\", \"marginTop\": \"16px\" }\\n      },\\n      \"calculate_button\": {\\n        \"type\": \"Button\",\\n        \"label\": \"Calculate BMI\",\\n        \"bind\": null,\\n        \"onClick\": \"calculateBmi\",\\n        \"props\": { \"type\": \"primary\", \"size\": \"large\", \"htmlType\": \"submit\", \"loading\": \"$state.isCalculating\", \"icon\": \"CalculatorOutlined\", \"aria-label\": \"Calculate BMI\" },\\n        \"styles\": { \"minWidth\": \"160px\" }\\n      },\\n      \"reset_button\": {\\n        \"type\": \"Button\",\\n        \"label\": \"Reset\",\\n        \"bind\": null,\\n        \"onClick\": \"resetForm\",\\n        \"props\": { \"size\": \"large\", \"htmlType\": \"reset\", \"aria-label\": \"Reset form\" },\\n        \"styles\": { \"minWidth\": \"100px\" }\\n      },\\n      \"result_card\": {\\n        \"type\": \"Card\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"bordered\": true, \"className\": \"bmi-result-card fade-in\" },\\n        \"styles\": { \"marginBottom\": \"24px\", \"display\": \"$state.showResult ? \\'block\\' : \\'none\\'\", \"animation\": \"fadeIn 0.4s ease-in\" }\\n      },\\n      \"result_content_container\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"style\": { \"textAlign\": \"center\" } },\\n        \"styles\": {}\\n      },\\n      \"bmi_value_display\": {\\n        \"type\": \"Typography.Title\",\\n        \"label\": null,\\n        \"bind\": \"state.bmiResult.bmiValue\",\\n        \"onClick\": null,\\n        \"props\": { \"level\": 1, \"style\": { \"fontSize\": \"48px\", \"marginBottom\": \"8px\" } },\\n        \"styles\": {}\\n      },\\n      \"bmi_label_text\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": \"Your BMI\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"type\": \"secondary\", \"style\": { \"fontSize\": \"16px\", \"display\": \"block\", \"marginBottom\": \"16px\" } },\\n        \"styles\": {}\\n      },\\n      \"bmi_category_tag\": {\\n        \"type\": \"Tag\",\\n        \"label\": null,\\n        \"bind\": \"state.bmiResult.category\",\\n        \"onClick\": null,\\n        \"props\": { \"color\": \"$state.bmiResult.colorCode\", \"style\": { \"fontSize\": \"18px\", \"padding\": \"8px 24px\", \"borderRadius\": \"20px\" } },\\n        \"styles\": {}\\n      },\\n      \"bmi_category_description\": {\\n        \"type\": \"Typography.Paragraph\",\\n        \"label\": null,\\n        \"bind\": \"state.bmiResult.description\",\\n        \"onClick\": null,\\n        \"props\": { \"style\": { \"marginTop\": \"16px\", \"color\": \"#666\" } },\\n        \"styles\": {}\\n      },\\n      \"bmi_scale_container\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"className\": \"bmi-scale-visualization\", \"aria-label\": \"BMI scale showing category ranges\" },\\n        \"styles\": { \"marginTop\": \"24px\", \"padding\": \"16px 0\" }\\n      },\\n      \"bmi_scale_bar\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"className\": \"bmi-scale-bar\" },\\n        \"styles\": { \"height\": \"24px\", \"borderRadius\": \"12px\", \"display\": \"flex\", \"overflow\": \"hidden\", \"position\": \"relative\" }\\n      },\\n      \"scale_underweight_segment\": {\\n        \"type\": \"div\",\\n        \"label\": \"Underweight\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"Underweight: < 18.5\" },\\n        \"styles\": { \"flex\": \"18.5\", \"backgroundColor\": \"#3B82F6\" }\\n      },\\n      \"scale_normal_segment\": {\\n        \"type\": \"div\",\\n        \"label\": \"Normal\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"Normal: 18.5 - 24.9\" },\\n        \"styles\": { \"flex\": \"6.5\", \"backgroundColor\": \"#10B981\" }\\n      },\\n      \"scale_overweight_segment\": {\\n        \"type\": \"div\",\\n        \"label\": \"Overweight\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"Overweight: 25 - 29.9\" },\\n        \"styles\": { \"flex\": \"5\", \"backgroundColor\": \"#F59E0B\" }\\n      },\\n      \"scale_obese_segment\": {\\n        \"type\": \"div\",\\n        \"label\": \"Obese\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"Obese: 30+\" },\\n        \"styles\": { \"flex\": \"10\", \"backgroundColor\": \"#EF4444\" }\\n      },\\n      \"bmi_marker\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": \"state.bmiResult.bmiValue\",\\n        \"onClick\": null,\\n        \"props\": { \"className\": \"bmi-marker\", \"aria-label\": \"Your BMI position on scale\" },\\n        \"styles\": { \"position\": \"absolute\", \"width\": \"4px\", \"height\": \"32px\", \"backgroundColor\": \"#1F2937\", \"top\": \"-4px\", \"borderRadius\": \"2px\", \"transition\": \"left 0.3s ease\" }\\n      },\\n      \"scale_labels_container\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": {},\\n        \"styles\": { \"display\": \"flex\", \"justifyContent\": \"space-between\", \"marginTop\": \"8px\", \"fontSize\": \"12px\", \"color\": \"#666\" }\\n      },\\n      \"scale_label_underweight\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": \"Underweight\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"style\": { \"fontSize\": \"11px\", \"color\": \"#3B82F6\" } },\\n        \"styles\": {}\\n      },\\n      \"scale_label_normal\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": \"Normal\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"style\": { \"fontSize\": \"11px\", \"color\": \"#10B981\" } },\\n        \"styles\": {}\\n      },\\n      \"scale_label_overweight\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": \"Overweight\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"style\": { \"fontSize\": \"11px\", \"color\": \"#F59E0B\" } },\\n        \"styles\": {}\\n      },\\n      \"scale_label_obese\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": \"Obese\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"style\": { \"fontSize\": \"11px\", \"color\": \"#EF4444\" } },\\n        \"styles\": {}\\n      },\\n      \"history_card\": {\\n        \"type\": \"Card\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"Calculation History\", \"bordered\": true },\\n        \"styles\": { \"marginBottom\": \"24px\" }\\n      },\\n      \"history_header_container\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": {},\\n        \"styles\": { \"display\": \"flex\", \"justifyContent\": \"space-between\", \"alignItems\": \"center\", \"marginBottom\": \"16px\" }\\n      },\\n      \"history_count_text\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": null,\\n        \"bind\": \"appContext.calculationHistory.length\",\\n        \"onClick\": null,\\n        \"props\": { \"type\": \"secondary\" },\\n        \"styles\": {}\\n      },\\n      \"clear_all_button\": {\\n        \"type\": \"Button\",\\n        \"label\": \"Clear All History\",\\n        \"bind\": null,\\n        \"onClick\": \"openClearHistoryModal\",\\n        \"props\": { \"type\": \"default\", \"danger\": true, \"size\": \"small\", \"icon\": \"DeleteOutlined\", \"disabled\": \"!$derived.hasHistory\" },\\n        \"styles\": {}\\n      },\\n      \"history_list\": {\\n        \"type\": \"List\",\\n        \"label\": null,\\n        \"bind\": \"$derived.sortedHistory\",\\n        \"onClick\": null,\\n        \"props\": { \"dataSource\": \"$derived.sortedHistory\", \"locale\": { \"emptyText\": \"No calculations yet. Calculate your BMI to see history here.\" }, \"size\": \"small\" },\\n        \"styles\": { \"maxHeight\": \"400px\", \"overflowY\": \"auto\" }\\n      },\\n      \"history_list_item\": {\\n        \"type\": \"List.Item\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": {},\\n        \"styles\": {}\\n      },\\n      \"history_item_meta\": {\\n        \"type\": \"List.Item.Meta\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"$item.bmiValue + \\' - \\' + $item.category\", \"description\": \"$item.height + \\' \\' + $item.heightUnit + \\' / \\' + $item.weight + \\' \\' + $item.weightUnit\" },\\n        \"styles\": {}\\n      },\\n      \"history_item_timestamp\": {\\n        \"type\": \"Typography.Text\",\\n        \"label\": null,\\n        \"bind\": \"$item.timestamp\",\\n        \"onClick\": null,\\n        \"props\": { \"type\": \"secondary\", \"style\": { \"fontSize\": \"12px\" } },\\n        \"styles\": {}\\n      },\\n      \"history_item_delete_button\": {\\n        \"type\": \"Button\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": \"deleteHistoryEntry\",\\n        \"props\": { \"type\": \"text\", \"danger\": true, \"icon\": \"DeleteOutlined\", \"size\": \"small\", \"aria-label\": \"Delete this entry\" },\\n        \"styles\": {}\\n      },\\n      \"clear_history_modal\": {\\n        \"type\": \"Modal\",\\n        \"label\": null,\\n        \"bind\": \"state.clearHistoryModalVisible\",\\n        \"onClick\": null,\\n        \"props\": { \"title\": \"Clear All History\", \"open\": \"$state.clearHistoryModalVisible\", \"okText\": \"Clear All\", \"cancelText\": \"Cancel\", \"okButtonProps\": { \"danger\": true } },\\n        \"styles\": {}\\n      },\\n      \"clear_modal_content\": {\\n        \"type\": \"Typography.Paragraph\",\\n        \"label\": \"Are you sure you want to clear all calculation history? This action cannot be undone.\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": {},\\n        \"styles\": {}\\n      },\\n      \"confirm_clear_button\": {\\n        \"type\": \"Button\",\\n        \"label\": \"Clear All\",\\n        \"bind\": null,\\n        \"onClick\": \"confirmClearHistory\",\\n        \"props\": { \"type\": \"primary\", \"danger\": true },\\n        \"styles\": {}\\n      },\\n      \"cancel_clear_button\": {\\n        \"type\": \"Button\",\\n        \"label\": \"Cancel\",\\n        \"bind\": null,\\n        \"onClick\": \"cancelClearHistory\",\\n        \"props\": {},\\n        \"styles\": {}\\n      },\\n      \"info_collapse\": {\\n        \"type\": \"Collapse\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": \"toggleInfoPanel\",\\n        \"props\": { \"bordered\": true, \"items\": [{ \"key\": \"bmi_info\", \"label\": \"About BMI & Health Information\" }] },\\n        \"styles\": { \"marginBottom\": \"24px\" }\\n      },\\n      \"info_panel_content\": {\\n        \"type\": \"div\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": {},\\n        \"styles\": { \"padding\": \"16px\" }\\n      },\\n      \"info_what_is_bmi\": {\\n        \"type\": \"Typography.Title\",\\n        \"label\": \"What is BMI?\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"level\": 5 },\\n        \"styles\": {}\\n      },\\n      \"info_bmi_description\": {\\n        \"type\": \"Typography.Paragraph\",\\n        \"label\": \"Body Mass Index (BMI) is a simple calculation using a person\\'s height and weight. The BMI value is a measurement of body fat based on height and weight that applies to adult men and women.\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": {},\\n        \"styles\": {}\\n      },\\n      \"info_formula_title\": {\\n        \"type\": \"Typography.Title\",\\n        \"label\": \"BMI Formula\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"level\": 5 },\\n        \"styles\": { \"marginTop\": \"16px\" }\\n      },\\n      \"info_formula_metric\": {\\n        \"type\": \"Typography.Paragraph\",\\n        \"label\": \"Metric: BMI = weight (kg) \u00f7 height\u00b2 (m\u00b2)\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"code\": true },\\n        \"styles\": {}\\n      },\\n      \"info_formula_imperial\": {\\n        \"type\": \"Typography.Paragraph\",\\n        \"label\": \"Imperial: BMI = (weight (lbs) \u00d7 703) \u00f7 height\u00b2 (inches\u00b2)\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"code\": true },\\n        \"styles\": {}\\n      },\\n      \"info_categories_title\": {\\n        \"type\": \"Typography.Title\",\\n        \"label\": \"BMI Categories\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"level\": 5 },\\n        \"styles\": { \"marginTop\": \"16px\" }\\n      },\\n      \"info_categories_table\": {\\n        \"type\": \"Table\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": {\\n          \"pagination\": false,\\n          \"size\": \"small\",\\n          \"columns\": [\\n            { \"title\": \"Category\", \"dataIndex\": \"category\", \"key\": \"category\" },\\n            { \"title\": \"BMI Range\", \"dataIndex\": \"range\", \"key\": \"range\" },\\n            { \"title\": \"Color\", \"dataIndex\": \"color\", \"key\": \"color\" }\\n          ],\\n          \"dataSource\": [\\n            { \"key\": \"1\", \"category\": \"Underweight\", \"range\": \"< 18.5\", \"color\": \"Blue\" },\\n            { \"key\": \"2\", \"category\": \"Normal weight\", \"range\": \"18.5 \u2013 24.9\", \"color\": \"Green\" },\\n            { \"key\": \"3\", \"category\": \"Overweight\", \"range\": \"25.0 \u2013 29.9\", \"color\": \"Orange\" },\\n            { \"key\": \"4\", \"category\": \"Obese\", \"range\": \"\u2265 30.0\", \"color\": \"Red\" }\\n          ]\\n        },\\n        \"styles\": {}\\n      },\\n      \"info_disclaimer_title\": {\\n        \"type\": \"Typography.Title\",\\n        \"label\": \"Health Disclaimer\",\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"level\": 5 },\\n        \"styles\": { \"marginTop\": \"16px\" }\\n      },\\n      \"info_disclaimer_alert\": {\\n        \"type\": \"Alert\",\\n        \"label\": null,\\n        \"bind\": null,\\n        \"onClick\": null,\\n        \"props\": { \"type\": \"warning\", \"showIcon\": true, \"message\": \"BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, age, sex, or ethnicity. Please consult with a healthcare professional for a comprehensive health assessment.\" },\\n        \"styles\": {}\\n      }\\n    }\\n  },\\n  \"layout_ir\": {\\n    \"root\": \"main_container\",\\n    \"children\": {\\n      \"main_container\": [\"page_header\", \"page_subtitle\", \"calculator_card\", \"result_card\", \"history_card\", \"info_collapse\", \"clear_history_modal\"],\\n      \"calculator_card\": [\"unit_system_segment\", \"bmi_form\"],\\n      \"bmi_form\": [\"height_input\", \"weight_input\", \"form_buttons_container\"],\\n      \"height_input\": [\"height_input_number\"],\\n      \"weight_input\": [\"weight_input_number\"],\\n      \"form_buttons_container\": [\"calculate_button\", \"reset_button\"],\\n      \"result_card\": [\"result_content_container\"],\\n      \"result_content_container\": [\"bmi_value_display\", \"bmi_label_text\", \"bmi_category_tag\", \"bmi_category_description\", \"bmi_scale_container\"],\\n      \"bmi_scale_container\": [\"bmi_scale_bar\", \"scale_labels_container\"],\\n      \"bmi_scale_bar\": [\"scale_underweight_segment\", \"scale_normal_segment\", \"scale_overweight_segment\", \"scale_obese_segment\", \"bmi_marker\"],\\n      \"scale_labels_container\": [\"scale_label_underweight\", \"scale_label_normal\", \"scale_label_overweight\", \"scale_label_obese\"],\\n      \"history_card\": [\"history_header_container\", \"history_list\"],\\n      \"history_header_container\": [\"history_count_text\", \"clear_all_button\"],\\n      \"history_list\": [\"history_list_item\"],\\n      \"history_list_item\": [\"history_item_meta\", \"history_item_timestamp\", \"history_item_delete_button\"],\\n      \"clear_history_modal\": [\"clear_modal_content\", \"confirm_clear_button\", \"cancel_clear_button\"],\\n      \"info_collapse\": [\"info_panel_content\"],\\n      \"info_panel_content\": [\"info_what_is_bmi\", \"info_bmi_description\", \"info_formula_title\", \"info_formula_metric\", \"info_formula_imperial\", \"info_categories_title\", \"info_categories_table\", \"info_disclaimer_title\", \"info_disclaimer_alert\"]\\n    },\\n    \"layout\": {\\n      \"main_container\": { \"type\": \"vertical\", \"gap\": 0 },\\n      \"calculator_card\": { \"type\": \"vertical\", \"gap\": 0 },\\n      \"bmi_form\": { \"type\": \"vertical\", \"gap\": 16 },\\n      \"form_buttons_container\": { \"type\": \"horizontal\", \"gap\": 12 },\\n      \"result_card\": { \"type\": \"vertical\", \"gap\": 0 },\\n      \"result_content_container\": { \"type\": \"vertical\", \"gap\": 8 },\\n      \"bmi_scale_container\": { \"type\": \"vertical\", \"gap\": 8 },\\n      \"bmi_scale_bar\": { \"type\": \"horizontal\", \"gap\": 0 },\\n      \"scale_labels_container\": { \"type\": \"horizontal\", \"gap\": 0 },\\n      \"history_card\": { \"type\": \"vertical\", \"gap\": 0 },\\n      \"history_header_container\": { \"type\": \"horizontal\", \"gap\": 12 },\\n      \"history_list\": { \"type\": \"vertical\", \"gap\": 0 },\\n      \"history_list_item\": { \"type\": \"horizontal\", \"gap\": 8 },\\n      \"clear_history_modal\": { \"type\": \"vertical\", \"gap\": 16 },\\n      \"info_collapse\": { \"type\": \"vertical\", \"gap\": 0 },\\n      \"info_panel_content\": { \"type\": \"vertical\", \"gap\": 12 }\\n    },\\n    \"layout_zones\": [\\n      {\\n        \"zone_id\": \"main_zone\",\\n        \"component\": \"main_container\",\\n        \"anchor\": \"center\",\\n        \"size_hint\": \"full-width\",\\n        \"z_layer\": \"base\",\\n        \"notes\": \"Main page container centered with max-width\"\\n      },\\n      {\\n        \"zone_id\": \"modal_zone\",\\n        \"component\": \"clear_history_modal\",\\n        \"anchor\": \"center\",\\n        \"size_hint\": \"auto\",\\n        \"z_layer\": \"overlay\",\\n        \"notes\": \"Confirmation modal overlay\"\\n      }\\n    ]\\n  },\\n  \"page_data_contract\": null\\n}\\n```')",
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