I am continuing a previously developed project. Treat this as an ongoing system. ━━━━━━━━━━━━━━━━━━━━━━━ 🔷 CORE SYSTEM ARCHITECTURE ━━━━━━━━━━━━━━━━━━━━━━━ FILE: superadmin/ajax/ai_analysis.php TYPE: TABLES: project_files COLUMNS (project_files): id,file_path,scanned_at,module_name,tables_used,functions_used,api_used,relations,file_type,columns_used,form_actions,ajax_calls,includes_files ----------------------------- FILE: superadmin/ajax/board_ajax.php TYPE: TABLES: boards COLUMNS (boards): id,board_name,status,created_at ----------------------------- FILE: superadmin/ajax/chapter_ajax.php TYPE: TABLES: subjects,chapters COLUMNS (subjects): id,class_id,subject_name COLUMNS (chapters): id,class_id,subject_id,chapter_name,created_at ----------------------------- FILE: superadmin/ajax/class_ajax.php TYPE: TABLES: classes COLUMNS (classes): id,class_name,status ----------------------------- FILE: superadmin/ajax/get_districts.php TYPE: TABLES: districts COLUMNS (districts): id,state_id,district_name ----------------------------- FILE: superadmin/ajax/get_subjects.php TYPE: TABLES: student_subjects,subjects COLUMNS (student_subjects): id,student_id,subject_id COLUMNS (subjects): id,class_id,subject_name ----------------------------- FILE: superadmin/ajax/question_ajax.php TYPE: TABLES: questions COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at ----------------------------- FILE: superadmin/ajax/subject_ajax.php TYPE: TABLES: subjects COLUMNS (subjects): id,class_id,subject_name ----------------------------- FILE: superadmin/ajax/timeline_ajax.php TYPE: TABLES: development_timeline COLUMNS (development_timeline): id,module_name,action_type,table_name,columns_used,file_path,description,created_at ----------------------------- FILE: superadmin/ajax/version_ajax.php TYPE: TABLES: project_versions COLUMNS (project_versions): id,version_name,description,created_at ----------------------------- FILE: superadmin/chapters.php TYPE: TABLES: classes COLUMNS (classes): id,class_name,status ----------------------------- FILE: superadmin/dashboard_stats.php TYPE: TABLES: classes,subjects,chapters,questions,project_files COLUMNS (classes): id,class_name,status COLUMNS (subjects): id,class_id,subject_name COLUMNS (chapters): id,class_id,subject_id,chapter_name,created_at COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at COLUMNS (project_files): id,file_path,scanned_at,module_name,tables_used,functions_used,api_used,relations,file_type,columns_used,form_actions,ajax_calls,includes_files ----------------------------- FILE: superadmin/download_prompt.php TYPE: TABLES: development_timeline COLUMNS (development_timeline): id,module_name,action_type,table_name,columns_used,file_path,description,created_at ----------------------------- FILE: superadmin/download_timeline.php TYPE: TABLES: development_timeline COLUMNS (development_timeline): id,module_name,action_type,table_name,columns_used,file_path,description,created_at ----------------------------- FILE: superadmin/edit_question.php TYPE: TABLES: questions COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at ----------------------------- FILE: superadmin/login.php TYPE: TABLES: admins COLUMNS (admins): id,name,email,password ----------------------------- FILE: superadmin/question_list.php TYPE: TABLES: classes COLUMNS (classes): id,class_name,status ----------------------------- FILE: superadmin/questions.php TYPE: TABLES: classes COLUMNS (classes): id,class_name,status ----------------------------- FILE: superadmin/search_logs.php TYPE: TABLES: development_timeline COLUMNS (development_timeline): id,module_name,action_type,table_name,columns_used,file_path,description,created_at ----------------------------- FILE: superadmin/student/ai_chapters.php TYPE: TABLES: practice_answers COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id ----------------------------- FILE: superadmin/student/ai_questions.php TYPE: TABLES: practice_answers COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id ----------------------------- FILE: superadmin/student/ai_report.php TYPE: TABLES: practice_answers COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id ----------------------------- FILE: superadmin/student/ai_subjects.php TYPE: TABLES: practice_answers COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id ----------------------------- FILE: superadmin/student/analytics.php TYPE: TABLES: practice_sessions,practice_answers COLUMNS (practice_sessions): id,student_id,subject_id,chapter_id,difficulty,total_questions,correct,wrong,skipped,time_taken,created_at,accuracy COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id ----------------------------- FILE: superadmin/student/chapters.php TYPE: TABLES: student_subjects,chapters COLUMNS (student_subjects): id,student_id,subject_id COLUMNS (chapters): id,class_id,subject_id,chapter_name,created_at ----------------------------- FILE: superadmin/student/dashboard.php TYPE: TABLES: students,practice_answers,practice_sessions COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id COLUMNS (practice_sessions): id,student_id,subject_id,chapter_id,difficulty,total_questions,correct,wrong,skipped,time_taken,created_at,accuracy ----------------------------- FILE: superadmin/student/edit_profile.php TYPE: TABLES: student_subjects,students,classes,states COLUMNS (student_subjects): id,student_id,subject_id COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge COLUMNS (classes): id,class_name,status COLUMNS (states): id,state_name ----------------------------- FILE: superadmin/student/index.php TYPE: TABLES: students COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge ----------------------------- FILE: superadmin/student/leaderboard.php TYPE: TABLES: classes,subjects,students COLUMNS (classes): id,class_name,status COLUMNS (subjects): id,class_id,subject_name COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge ----------------------------- FILE: superadmin/student/login.php TYPE: TABLES: students COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge ----------------------------- FILE: superadmin/student/practice_type.php TYPE: TABLES: chapters COLUMNS (chapters): id,class_id,subject_id,chapter_name,created_at ----------------------------- FILE: superadmin/student/profile.php TYPE: TABLES: students,student_subjects COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge COLUMNS (student_subjects): id,student_id,subject_id ----------------------------- FILE: superadmin/student/rank_history.php TYPE: TABLES: ranking_history COLUMNS (ranking_history): id,student_id,rank_position,avg_accuracy,total_tests,created_at ----------------------------- FILE: superadmin/student/register.php TYPE: TABLES: students COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge ----------------------------- FILE: superadmin/student/result.php TYPE: TABLES: practice_sessions,practice_answers,students COLUMNS (practice_sessions): id,student_id,subject_id,chapter_id,difficulty,total_questions,correct,wrong,skipped,time_taken,created_at,accuracy COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge ----------------------------- FILE: superadmin/student/select_class.php TYPE: TABLES: classes COLUMNS (classes): id,class_name,status ----------------------------- FILE: superadmin/student/start_practice.php TYPE: TABLES: student_subjects COLUMNS (student_subjects): id,student_id,subject_id ----------------------------- FILE: superadmin/student/start_test.php TYPE: TABLES: questions COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at ----------------------------- FILE: superadmin/student/start_test_weak.php TYPE: TABLES: practice_answers,questions COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at ----------------------------- FILE: superadmin/student/submit_test.php TYPE: TABLES: questions,practice_sessions,practice_answers,students COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at COLUMNS (practice_sessions): id,student_id,subject_id,chapter_id,difficulty,total_questions,correct,wrong,skipped,time_taken,created_at,accuracy COLUMNS (practice_answers): id,session_id,question_id,selected_answer,is_correct,time_taken,student_id COLUMNS (students): id,name,mobile,password,created_at,class_id,state,district,dob,email,last_accuracy,coins,badge ----------------------------- FILE: superadmin/subjects.php TYPE: TABLES: classes COLUMNS (classes): id,class_name,status ----------------------------- FILE: superadmin/update_question.php TYPE: TABLES: questions COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at ----------------------------- FILE: superadmin/upload_questions.php TYPE: TABLES: questions COLUMNS (questions): id,question_code,class_id,subject_id,chapter_id,question,option_a,option_b,option_c,option_d,correct_answer,explanation,difficulty,created_at ----------------------------- ━━━━━━━━━━━━━━━━━━━━━━━ 🔷 CLEAN SYSTEM FLOW ━━━━━━━━━━━━━━━━━━━━━━━ ━━━━━━━━━━━━━━━━━━━━━━━ 🔷 // NEW FLOW (CORRECT) ━━━━━━━━━━━━━━━━━━━━━━━ ━━━━━━━━━━━━━━━━━━━━━━━ 🔷 INSTRUCTION ━━━━━━━━━━━━━━━━━━━━━━━ Continue development without breaking structure and follow relationships strictly.