stable POC version 1 - chat and topics

backend/src/main/java/com/aiteacher/chat/ChatController.java

@@ -32,6 +32,21 @@ public class ChatController {
         return ResponseEntity.status(HttpStatus.CREATED).body(response);
     }
 
+    @GetMapping("/sessions")
+    public ResponseEntity<List<Map<String, Object>>> getSessionsByTopic(@RequestParam String topicId) {
+        List<ChatSession> sessions = chatService.getSessionsByTopic(topicId);
+        List<Map<String, Object>> response = sessions.stream()
+            .map(s -> {
+                Map<String, Object> m = new LinkedHashMap<>();
+                m.put("sessionId", s.getId());
+                m.put("topicId", s.getTopicId());
+                m.put("createdAt", s.getCreatedAt());
+                return m;
+            })
+            .toList();
+        return ResponseEntity.ok(response);
+    }
+
     @GetMapping("/sessions/{sessionId}/messages")
     public ResponseEntity<List<Map<String, Object>>> getMessages(@PathVariable UUID sessionId) {
         List<Message> messages = chatService.getMessages(sessionId);

backend/src/main/java/com/aiteacher/chat/ChatService.java

@@ -26,17 +26,18 @@ public class ChatService {
     private static final Logger log = LoggerFactory.getLogger(ChatService.class);
 
     private static final String SYSTEM_PROMPT = """
-        You are an expert neurosurgery educator assistant. Your role is to answer
-        questions based ONLY on the content from uploaded medical textbooks that has been
-        retrieved for you as context.
+        You are an expert neurosurgery educator assistant. Answer questions using the
+        medical textbook content provided to you as context.
 
         Rules:
-        - Answer only from the provided context chunks
-        - If the context does not contain enough information, explicitly state:
-          "I could not find relevant information about this topic in the uploaded books."
-        - Cite sources when possible (book title and page number from the context metadata)
+        - Give comprehensive, detailed answers — cover all relevant aspects found in the context: anatomy, indications, contraindications, techniques, procedural steps, complications, outcomes, and clinical considerations
+        - When the context contains related information, synthesize a thorough answer from it — do not apologize for missing definitions or lead with what you couldn't find
+        - Build answers from what is present: procedures, conditions, techniques, and descriptions all contribute; combine them into a rich, structured response
+        - Use clear structure: headings, bullet points, or numbered steps where appropriate to maximize clarity
+        - Only say you cannot answer if the context is entirely unrelated to the question
+        - Cite sources for each major point (book title and page number from the context metadata)
         - Maintain continuity with the conversation history
-        - Never fabricate clinical information
+        - Never fabricate clinical information not present in the context
         """;
 
     private final ChatClient chatClient;
@@ -87,7 +88,7 @@ public class ChatService {
         String fullQuestion = buildQuestionWithHistory(history, userContent, session.getTopicId());
 
         var qaAdvisor = QuestionAnswerAdvisor.builder(vectorStore)
-        .searchRequest(SearchRequest.builder().similarityThreshold(0.8d).topK(6).build())
+        .searchRequest(SearchRequest.builder().similarityThreshold(0.5d).topK(6).build())
         .build();
         
         ChatResponse response = chatClient.prompt()
@@ -106,6 +107,10 @@ public class ChatService {
         return messageRepository.save(assistantMessage);
     }
 
+    public List<ChatSession> getSessionsByTopic(String topicId) {
+        return sessionRepository.findByTopicIdOrderByCreatedAtDesc(topicId);
+    }
+
     public void deleteSession(UUID sessionId) {
         if (!sessionRepository.existsById(sessionId)) {
             throw new NoSuchElementException("Session not found.");
@@ -115,16 +120,17 @@ public class ChatService {
 
     private String buildQuestionWithHistory(List<Message> history, String currentQuestion,
                                             String topicId) {
+        boolean hasTopic = topicId != null && !topicId.equals("free-form");
+
         if (history.size() <= 1) {
-            // Only the current user message is in history; just ask the question
-            return topicId != null
+            return hasTopic
                 ? String.format("[Context: This is a question about the neurosurgery topic '%s']\n%s",
                     topicId, currentQuestion)
                 : currentQuestion;
         }
 
         StringBuilder sb = new StringBuilder();
-        if (topicId != null) {
+        if (hasTopic) {
             sb.append(String.format("[Context: This conversation is about the neurosurgery topic '%s']\n\n",
                 topicId));
         }
@@ -154,6 +160,7 @@ public class ChatService {
                             Map<String, Object> source = new HashMap<>();
                             source.put("bookTitle", bookTitle);
                             source.put("page", page);
+                            source.put("chunkText", doc.getText());
                             sources.add(source);
                         }
                     }

backend/src/main/java/com/aiteacher/chat/ChatSessionRepository.java

@@ -3,8 +3,10 @@ package com.aiteacher.chat;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
 import java.util.UUID;
 
 @Repository
 public interface ChatSessionRepository extends JpaRepository<ChatSession, UUID> {
+    List<ChatSession> findByTopicIdOrderByCreatedAtDesc(String topicId);
 }

backend/src/main/java/com/aiteacher/topic/Topic.java

@@ -1,9 +1,37 @@
 package com.aiteacher.topic;
 
-public record Topic(
-    String id,
-    String name,
-    String description,
-    String category
-) {
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "topic")
+public class Topic {
+
+    @Id
+    private String id;
+
+    @Column(nullable = false)
+    private String name;
+
+    @Column(nullable = false, columnDefinition = "TEXT")
+    private String description;
+
+    @Column(nullable = false)
+    private String category;
+
+    protected Topic() {}
+
+    public Topic(String id, String name, String description, String category) {
+        this.id = id;
+        this.name = name;
+        this.description = description;
+        this.category = category;
+    }
+
+    public String getId() { return id; }
+    public String getName() { return name; }
+    public String getDescription() { return description; }
+    public String getCategory() { return category; }
 }

backend/src/main/java/com/aiteacher/topic/TopicConfigLoader.java

@@ -6,14 +6,12 @@ import jakarta.annotation.PostConstruct;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.core.io.ClassPathResource;
-import org.springframework.stereotype.Component;
-
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.List;
 import java.util.Optional;
 
-@Component
+// Replaced by TopicRepository (DB-backed). Kept for reference only.
 public class TopicConfigLoader {
 
     private static final Logger log = LoggerFactory.getLogger(TopicConfigLoader.class);
@@ -40,7 +38,7 @@ public class TopicConfigLoader {
 
     public Optional<Topic> findById(String id) {
         return topics.stream()
-            .filter(t -> t.id().equals(id))
+            .filter(t -> t.getId().equals(id))
             .findFirst();
     }
 }

backend/src/main/java/com/aiteacher/topic/TopicController.java

@@ -10,23 +10,23 @@ import java.util.NoSuchElementException;
 @RequestMapping("/api/v1/topics")
 public class TopicController {
 
-    private final TopicConfigLoader topicConfigLoader;
+    private final TopicRepository topicRepository;
     private final TopicSummaryService topicSummaryService;
 
-    public TopicController(TopicConfigLoader topicConfigLoader,
+    public TopicController(TopicRepository topicRepository,
                            TopicSummaryService topicSummaryService) {
-        this.topicConfigLoader = topicConfigLoader;
+        this.topicRepository = topicRepository;
         this.topicSummaryService = topicSummaryService;
     }
 
     @GetMapping
     public ResponseEntity<List<Topic>> list() {
-        return ResponseEntity.ok(topicConfigLoader.getAll());
+        return ResponseEntity.ok(topicRepository.findAll());
     }
 
     @PostMapping("/{id}/summary")
     public ResponseEntity<TopicSummaryResponse> generateSummary(@PathVariable String id) {
-        Topic topic = topicConfigLoader.findById(id)
+        Topic topic = topicRepository.findById(id)
             .orElseThrow(() -> new NoSuchElementException("Topic not found."));
 
         TopicSummaryResponse response = topicSummaryService.generateSummary(topic);

backend/src/main/java/com/aiteacher/topic/TopicRepository.java

@@ -0,0 +1,8 @@
+package com.aiteacher.topic;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface TopicRepository extends JpaRepository<Topic, String> {
+}

backend/src/main/java/com/aiteacher/topic/TopicSummaryService.java

@@ -65,8 +65,8 @@ public class TopicSummaryService {
         List<TopicSummaryResponse.SourceReference> sources = extractSources(response);
 
         return new TopicSummaryResponse(
-            topic.id(),
-            topic.name(),
+            topic.getId(),
+            topic.getName(),
             summary,
             sources,
             Instant.now()
@@ -78,7 +78,7 @@ public class TopicSummaryService {
             "Please provide a comprehensive educational summary of the following neurosurgery topic: " +
             "%s. Topic description: %s. " +
             "Include key concepts, clinical considerations, and important details that a neurosurgeon should know.",
-            topic.name(), topic.description()
+            topic.getName(), topic.getDescription()
         );
     }
 

backend/src/main/resources/db/migration/V3__topics_table.sql

@@ -0,0 +1,48 @@
+CREATE TABLE topic (
+    id          VARCHAR(100) PRIMARY KEY,
+    name        VARCHAR(255) NOT NULL,
+    description TEXT         NOT NULL,
+    category    VARCHAR(100) NOT NULL
+);
+
+INSERT INTO topic (id, name, description, category) VALUES
+    ('intracranial-aneurysms',
+     'Intracranial Aneurysms',
+     'Diagnosis, classification, endovascular coiling, flow diversion, and surgical clipping of intracranial aneurysms.',
+     'Neurointervention'),
+    ('arteriovenous-malformations',
+     'Arteriovenous Malformations',
+     'Pathophysiology, Spetzler-Martin grading, embolization strategies, and multimodality treatment of cerebral AVMs.',
+     'Neurointervention'),
+    ('dural-arteriovenous-fistula',
+     'Dural Arteriovenous Fistula (DAVF)',
+     'Classification (Borden/Cognard), clinical presentation, transarterial and transvenous embolization of DAVFs.',
+     'Neurointervention'),
+    ('acute-ischemic-stroke',
+     'Acute Ischemic Stroke (AIS)',
+     'IV thrombolysis, mechanical thrombectomy, patient selection, access strategies, and outcomes for acute ischemic stroke.',
+     'Neurointervention'),
+    ('carotid-vertebral-artery-disease',
+     'Carotid & Vertebral Artery Disease',
+     'Carotid artery stenting, angioplasty, dissection management, and vertebral artery interventions.',
+     'Neurointervention'),
+    ('spinal-vascular-malformations',
+     'Spinal Vascular Malformations',
+     'Classification, angiographic evaluation, and endovascular treatment of spinal dural and perimedullary fistulas and AVMs.',
+     'Neurointervention'),
+    ('tumor-embolization',
+     'Tumor Embolization',
+     'Pre-operative embolization techniques, embolic agents, and complication management for hypervascular tumors.',
+     'Neurointervention'),
+    ('cerebral-venous-disease',
+     'Cerebral Venous Disease',
+     'Cerebral venous sinus thrombosis, venous angioplasty, stenting for intracranial hypertension, and dural sinus interventions.',
+     'Neurointervention'),
+    ('pediatric-neurointervention',
+     'Pediatric Neurointervention',
+     'Specific considerations, techniques, and outcomes for endovascular procedures in the pediatric population.',
+     'Neurointervention'),
+    ('free-form',
+     'Free-form Chat',
+     'Open-ended questions across any neurointervention topic.',
+     'General');

backend/src/main/resources/topics.json

@@ -1,74 +1,56 @@
 [
   {
-    "id": "cerebral-aneurysm",
-    "name": "Cerebral Aneurysm Management",
-    "description": "Diagnosis, grading, and surgical/endovascular treatment of cerebral aneurysms.",
-    "category": "Vascular"
+    "id": "intracranial-aneurysms",
+    "name": "Intracranial Aneurysms",
+    "description": "Diagnosis, classification, endovascular coiling, flow diversion, and surgical clipping of intracranial aneurysms.",
+    "category": "Neurointervention"
   },
   {
-    "id": "subarachnoid-hemorrhage",
-    "name": "Subarachnoid Hemorrhage",
-    "description": "Pathophysiology, clinical presentation, and management of subarachnoid hemorrhage.",
-    "category": "Vascular"
+    "id": "arteriovenous-malformations",
+    "name": "Arteriovenous Malformations",
+    "description": "Pathophysiology, Spetzler-Martin grading, embolization strategies, and multimodality treatment of cerebral AVMs.",
+    "category": "Neurointervention"
   },
   {
-    "id": "arteriovenous-malformation",
-    "name": "Arteriovenous Malformation (AVM)",
-    "description": "Classification, natural history, and treatment options for cerebral AVMs.",
-    "category": "Vascular"
+    "id": "dural-arteriovenous-fistula",
+    "name": "Dural Arteriovenous Fistula (DAVF)",
+    "description": "Classification (Borden/Cognard), clinical presentation, transarterial and transvenous embolization of DAVFs.",
+    "category": "Neurointervention"
   },
   {
-    "id": "carotid-stenosis",
-    "name": "Carotid Artery Stenosis",
-    "description": "Evaluation and surgical or endovascular management of carotid artery stenosis.",
-    "category": "Vascular"
+    "id": "acute-ischemic-stroke",
+    "name": "Acute Ischemic Stroke (AIS)",
+    "description": "IV thrombolysis, mechanical thrombectomy, patient selection, access strategies, and outcomes for acute ischemic stroke.",
+    "category": "Neurointervention"
   },
   {
-    "id": "glioblastoma",
-    "name": "Glioblastoma (GBM)",
-    "description": "Pathophysiology, surgical resection strategies, and adjuvant therapy for GBM.",
-    "category": "Oncology"
+    "id": "carotid-vertebral-artery-disease",
+    "name": "Carotid & Vertebral Artery Disease",
+    "description": "Carotid artery stenting, angioplasty, dissection management, and vertebral artery interventions.",
+    "category": "Neurointervention"
   },
   {
-    "id": "meningioma",
-    "name": "Meningioma",
-    "description": "Classification, surgical approaches, and recurrence management for meningiomas.",
-    "category": "Oncology"
+    "id": "spinal-vascular-malformations",
+    "name": "Spinal Vascular Malformations",
+    "description": "Classification, angiographic evaluation, and endovascular treatment of spinal dural and perimedullary fistulas and AVMs.",
+    "category": "Neurointervention"
   },
   {
-    "id": "pituitary-adenoma",
-    "name": "Pituitary Adenoma",
-    "description": "Hormonal assessment, transsphenoidal surgery, and medical management of pituitary adenomas.",
-    "category": "Oncology"
+    "id": "tumor-embolization",
+    "name": "Tumor Embolization",
+    "description": "Pre-operative embolization techniques, embolic agents, and complication management for hypervascular tumors.",
+    "category": "Neurointervention"
   },
   {
-    "id": "lumbar-disc-herniation",
-    "name": "Lumbar Disc Herniation",
-    "description": "Anatomy, clinical presentation, conservative and surgical treatment of lumbar disc herniation.",
-    "category": "Spine"
+    "id": "cerebral-venous-disease",
+    "name": "Cerebral Venous Disease",
+    "description": "Cerebral venous sinus thrombosis, venous angioplasty, stenting for intracranial hypertension, and dural sinus interventions.",
+    "category": "Neurointervention"
   },
   {
-    "id": "cervical-myelopathy",
-    "name": "Cervical Spondylotic Myelopathy",
-    "description": "Pathomechanics, clinical grading, and decompressive surgery for cervical myelopathy.",
-    "category": "Spine"
-  },
-  {
-    "id": "spinal-cord-injury",
-    "name": "Spinal Cord Injury",
-    "description": "ASIA classification, acute management protocols, and rehabilitation strategies for SCI.",
-    "category": "Spine"
-  },
-  {
-    "id": "traumatic-brain-injury",
-    "name": "Traumatic Brain Injury (TBI)",
-    "description": "GCS scoring, intracranial pressure monitoring, and surgical management of TBI.",
-    "category": "Trauma"
-  },
-  {
-    "id": "epidural-hematoma",
-    "name": "Epidural Hematoma",
-    "description": "Mechanism, radiological features, and emergency surgical evacuation of epidural hematomas.",
-    "category": "Trauma"
+    "id": "pediatric-neurointervention",
+    "name": "Pediatric Neurointervention",
+    "description": "Specific considerations, techniques, and outcomes for endovascular procedures in the pediatric population.",
+    "category": "Neurointervention"
   }
 ]

backend/target/classes/application.yaml

@@ -7,7 +7,7 @@ spring:
 
   jpa:
     hibernate:
-      ddl-auto: update
+      ddl-auto: false
     show-sql: false
     properties:
       hibernate:
@@ -25,15 +25,15 @@ spring:
         dimensions: 1536
         distance-type: COSINE_DISTANCE
         index-type: HNSW
-        initialize-schema: false
+        initialize-schema: true
     openai:
-      api-key: ${OPENAI_API_KEY}
+      api-key: ${OPENAI_API_KEY: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}
       chat:
         options:
-          model: gpt-4o
+          model: gpt-4o-mini
       embedding:
         options:
-          model: "text-embedding-3-small"
+          model: text-embedding-3-small
 
   servlet:
     multipart:

backend/target/classes/db/migration/V3__topics_table.sql

@@ -0,0 +1,48 @@
+CREATE TABLE topic (
+    id          VARCHAR(100) PRIMARY KEY,
+    name        VARCHAR(255) NOT NULL,
+    description TEXT         NOT NULL,
+    category    VARCHAR(100) NOT NULL
+);
+
+INSERT INTO topic (id, name, description, category) VALUES
+    ('intracranial-aneurysms',
+     'Intracranial Aneurysms',
+     'Diagnosis, classification, endovascular coiling, flow diversion, and surgical clipping of intracranial aneurysms.',
+     'Neurointervention'),
+    ('arteriovenous-malformations',
+     'Arteriovenous Malformations',
+     'Pathophysiology, Spetzler-Martin grading, embolization strategies, and multimodality treatment of cerebral AVMs.',
+     'Neurointervention'),
+    ('dural-arteriovenous-fistula',
+     'Dural Arteriovenous Fistula (DAVF)',
+     'Classification (Borden/Cognard), clinical presentation, transarterial and transvenous embolization of DAVFs.',
+     'Neurointervention'),
+    ('acute-ischemic-stroke',
+     'Acute Ischemic Stroke (AIS)',
+     'IV thrombolysis, mechanical thrombectomy, patient selection, access strategies, and outcomes for acute ischemic stroke.',
+     'Neurointervention'),
+    ('carotid-vertebral-artery-disease',
+     'Carotid & Vertebral Artery Disease',
+     'Carotid artery stenting, angioplasty, dissection management, and vertebral artery interventions.',
+     'Neurointervention'),
+    ('spinal-vascular-malformations',
+     'Spinal Vascular Malformations',
+     'Classification, angiographic evaluation, and endovascular treatment of spinal dural and perimedullary fistulas and AVMs.',
+     'Neurointervention'),
+    ('tumor-embolization',
+     'Tumor Embolization',
+     'Pre-operative embolization techniques, embolic agents, and complication management for hypervascular tumors.',
+     'Neurointervention'),
+    ('cerebral-venous-disease',
+     'Cerebral Venous Disease',
+     'Cerebral venous sinus thrombosis, venous angioplasty, stenting for intracranial hypertension, and dural sinus interventions.',
+     'Neurointervention'),
+    ('pediatric-neurointervention',
+     'Pediatric Neurointervention',
+     'Specific considerations, techniques, and outcomes for endovascular procedures in the pediatric population.',
+     'Neurointervention'),
+    ('free-form',
+     'Free-form Chat',
+     'Open-ended questions across any neurointervention topic.',
+     'General');

backend/target/classes/topics.json

@@ -1,74 +1,56 @@
 [
   {
-    "id": "cerebral-aneurysm",
-    "name": "Cerebral Aneurysm Management",
-    "description": "Diagnosis, grading, and surgical/endovascular treatment of cerebral aneurysms.",
-    "category": "Vascular"
+    "id": "intracranial-aneurysms",
+    "name": "Intracranial Aneurysms",
+    "description": "Diagnosis, classification, endovascular coiling, flow diversion, and surgical clipping of intracranial aneurysms.",
+    "category": "Neurointervention"
   },
   {
-    "id": "subarachnoid-hemorrhage",
-    "name": "Subarachnoid Hemorrhage",
-    "description": "Pathophysiology, clinical presentation, and management of subarachnoid hemorrhage.",
-    "category": "Vascular"
+    "id": "arteriovenous-malformations",
+    "name": "Arteriovenous Malformations",
+    "description": "Pathophysiology, Spetzler-Martin grading, embolization strategies, and multimodality treatment of cerebral AVMs.",
+    "category": "Neurointervention"
   },
   {
-    "id": "arteriovenous-malformation",
-    "name": "Arteriovenous Malformation (AVM)",
-    "description": "Classification, natural history, and treatment options for cerebral AVMs.",
-    "category": "Vascular"
+    "id": "dural-arteriovenous-fistula",
+    "name": "Dural Arteriovenous Fistula (DAVF)",
+    "description": "Classification (Borden/Cognard), clinical presentation, transarterial and transvenous embolization of DAVFs.",
+    "category": "Neurointervention"
   },
   {
-    "id": "carotid-stenosis",
-    "name": "Carotid Artery Stenosis",
-    "description": "Evaluation and surgical or endovascular management of carotid artery stenosis.",
-    "category": "Vascular"
+    "id": "acute-ischemic-stroke",
+    "name": "Acute Ischemic Stroke (AIS)",
+    "description": "IV thrombolysis, mechanical thrombectomy, patient selection, access strategies, and outcomes for acute ischemic stroke.",
+    "category": "Neurointervention"
   },
   {
-    "id": "glioblastoma",
-    "name": "Glioblastoma (GBM)",
-    "description": "Pathophysiology, surgical resection strategies, and adjuvant therapy for GBM.",
-    "category": "Oncology"
+    "id": "carotid-vertebral-artery-disease",
+    "name": "Carotid & Vertebral Artery Disease",
+    "description": "Carotid artery stenting, angioplasty, dissection management, and vertebral artery interventions.",
+    "category": "Neurointervention"
   },
   {
-    "id": "meningioma",
-    "name": "Meningioma",
-    "description": "Classification, surgical approaches, and recurrence management for meningiomas.",
-    "category": "Oncology"
+    "id": "spinal-vascular-malformations",
+    "name": "Spinal Vascular Malformations",
+    "description": "Classification, angiographic evaluation, and endovascular treatment of spinal dural and perimedullary fistulas and AVMs.",
+    "category": "Neurointervention"
   },
   {
-    "id": "pituitary-adenoma",
-    "name": "Pituitary Adenoma",
-    "description": "Hormonal assessment, transsphenoidal surgery, and medical management of pituitary adenomas.",
-    "category": "Oncology"
+    "id": "tumor-embolization",
+    "name": "Tumor Embolization",
+    "description": "Pre-operative embolization techniques, embolic agents, and complication management for hypervascular tumors.",
+    "category": "Neurointervention"
   },
   {
-    "id": "lumbar-disc-herniation",
-    "name": "Lumbar Disc Herniation",
-    "description": "Anatomy, clinical presentation, conservative and surgical treatment of lumbar disc herniation.",
-    "category": "Spine"
+    "id": "cerebral-venous-disease",
+    "name": "Cerebral Venous Disease",
+    "description": "Cerebral venous sinus thrombosis, venous angioplasty, stenting for intracranial hypertension, and dural sinus interventions.",
+    "category": "Neurointervention"
   },
   {
-    "id": "cervical-myelopathy",
-    "name": "Cervical Spondylotic Myelopathy",
-    "description": "Pathomechanics, clinical grading, and decompressive surgery for cervical myelopathy.",
-    "category": "Spine"
-  },
-  {
-    "id": "spinal-cord-injury",
-    "name": "Spinal Cord Injury",
-    "description": "ASIA classification, acute management protocols, and rehabilitation strategies for SCI.",
-    "category": "Spine"
-  },
-  {
-    "id": "traumatic-brain-injury",
-    "name": "Traumatic Brain Injury (TBI)",
-    "description": "GCS scoring, intracranial pressure monitoring, and surgical management of TBI.",
-    "category": "Trauma"
-  },
-  {
-    "id": "epidural-hematoma",
-    "name": "Epidural Hematoma",
-    "description": "Mechanism, radiological features, and emergency surgical evacuation of epidural hematomas.",
-    "category": "Trauma"
+    "id": "pediatric-neurointervention",
+    "name": "Pediatric Neurointervention",
+    "description": "Specific considerations, techniques, and outcomes for endovascular procedures in the pediatric population.",
+    "category": "Neurointervention"
   }
 ]

backend/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -19,5 +19,6 @@
 /home/adrien/project/java/ai-teacher/backend/src/main/java/com/aiteacher/topic/Topic.java
 /home/adrien/project/java/ai-teacher/backend/src/main/java/com/aiteacher/topic/TopicConfigLoader.java
 /home/adrien/project/java/ai-teacher/backend/src/main/java/com/aiteacher/topic/TopicController.java
+/home/adrien/project/java/ai-teacher/backend/src/main/java/com/aiteacher/topic/TopicRepository.java
 /home/adrien/project/java/ai-teacher/backend/src/main/java/com/aiteacher/topic/TopicSummaryResponse.java
 /home/adrien/project/java/ai-teacher/backend/src/main/java/com/aiteacher/topic/TopicSummaryService.java