Refactor report logging and enhance report generation features

- Renamed log_section_complete to log_section_content to better reflect its purpose, and added is_subsection parameter for improved logging of subsection content.
- Introduced log_section_full_complete method to log the completion of entire sections, including all subsections, enhancing tracking of report generation status.
- Adjusted maximum tool call limits for sections and chats to optimize performance during report generation.
- Updated system prompts and user prompts in the ReportAgent class to clarify the report's focus on future predictions rather than current analysis.
- Enhanced the Step3Simulation and Step4Report components for improved user experience, including UI updates and better handling of report generation states.

frontend/src/components/Step3Simulation.vue

@@ -655,7 +655,7 @@ const handleNextStep = async () => {
   try {
     const res = await generateReport({
       simulation_id: props.simulationId,
-      force_regenerate: false
+      force_regenerate: true
     })
     
     if (res.success && res.data) {