diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3a8370c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,38 @@
+# Docker volumes data
+postgres_data/
+es_data/
+ollama_data/
+minio_data/
+
+# Environment files
+.env
+.env.local
+.env.*.local
+*.env
+
+# Mac
+.DS_Store
+
+# Windows
+Thumbs.db
+ehthumbs.db
+Desktop.ini
+
+# Logs
+*.log
+
+# Memory bank (sensitive project information)
+memory-bank/
+
+# TaskMaster files (project management)
+.taskmaster/
+
+# IDE
+.vscode/
+.idea/
+
+# Temporary files
+*.tmp
+*.bak
+*.swp
+*~
\ No newline at end of file
diff --git a/core/.gitignore b/core/.gitignore
new file mode 100644
index 0000000..8252081
--- /dev/null
+++ b/core/.gitignore
@@ -0,0 +1,65 @@
+# Compiled class files
+*.class
+
+# Log files
+*.log
+
+# Package Files
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# Gradle
+.gradle
+**/build/
+!src/**/build/
+gradle-app.setting
+!gradle-wrapper.jar
+!gradle-wrapper.properties
+
+# IntelliJ IDEA
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+# Eclipse
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+# Spring Boot
+*.jar.original
+HELP.md
+
+# Application specific
+application-local.yml
+application-*.yml
+!application.yml
+!application-docker.yml
+
+# Test coverage reports
+/coverage
+/.nyc_output
+
+# QueryDSL generated files
+**/generated/
+
+# Temporary files
+*.tmp
+*.bak
+*.swp
\ No newline at end of file
diff --git a/core/build.gradle b/core/build.gradle
index 0eae4d0..1de20c8 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -1,7 +1,8 @@
 plugins {
     id 'java'
-    id 'org.springframework.boot' version '3.2.0'
-    id 'io.spring.dependency-management' version '1.1.4'
+    id 'org.springframework.boot' version '3.3.11'
+    id 'io.spring.dependency-management' version '1.1.6'
+    id 'com.ewerk.gradle.plugins.querydsl' version '1.0.10'
 }
 
 group = 'com.opencontext'
@@ -32,16 +33,36 @@ dependencies {
 
     // Database
     runtimeOnly 'org.postgresql:postgresql'
+    
+    // Database Migration
+    implementation 'org.flywaydb:flyway-core'
+    runtimeOnly 'org.flywaydb:flyway-database-postgresql'
+
+    // LangChain4j - Core RAG Framework
+    implementation 'dev.langchain4j:langchain4j:0.36.2'
+    implementation 'dev.langchain4j:langchain4j-spring-boot-starter:0.36.2'
+    implementation 'dev.langchain4j:langchain4j-document-parser-apache-pdfbox:0.36.2'
+    implementation 'dev.langchain4j:langchain4j-embeddings:0.36.2'
+    implementation 'dev.langchain4j:langchain4j-ollama:0.36.2'
+
+    // QueryDSL - Type-safe dynamic queries
+    implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
+    annotationProcessor 'com.querydsl:querydsl-apt:5.0.0:jakarta'
+    annotationProcessor 'jakarta.annotation:jakarta.annotation-api'
+    annotationProcessor 'jakarta.persistence:jakarta.persistence-api'
 
     // API Documentation
-    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.2.0'
+    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.7.0'
 
     // Object Storage (MinIO)
-    implementation 'io.minio:minio:8.5.7'
+    implementation 'io.minio:minio:8.5.12'
 
     // HTTP Client
     implementation 'org.springframework.boot:spring-boot-starter-webflux'
 
+    // Structured Logging
+    implementation 'net.logstash.logback:logstash-logback-encoder:7.4'
+
     // Utilities
     compileOnly 'org.projectlombok:lombok'
     annotationProcessor 'org.projectlombok:lombok'
@@ -58,14 +79,38 @@ dependencies {
     testImplementation 'org.testcontainers:junit-jupiter'
     testImplementation 'org.testcontainers:postgresql'
     testImplementation 'org.testcontainers:elasticsearch'
+    testRuntimeOnly 'com.h2database:h2'
 }
 
 dependencyManagement {
     imports {
-        mavenBom "org.testcontainers:testcontainers-bom:1.19.3"
+        mavenBom "org.testcontainers:testcontainers-bom:1.20.4"
     }
 }
 
 tasks.named('test') {
     useJUnitPlatform()
 }
+
+// QueryDSL Configuration
+def querydslDir = layout.buildDirectory.dir("generated/querydsl").get().asFile
+
+querydsl {
+    jpa = true
+    querydslSourcesDir = querydslDir
+}
+
+sourceSets {
+    main.java.srcDir querydslDir
+}
+
+compileQuerydsl {
+    options.annotationProcessorPath = configurations.querydsl
+}
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+    querydsl.extendsFrom compileClasspath
+}
diff --git a/core/gradlew b/core/gradlew
old mode 100644
new mode 100755
diff --git a/mcp-adapter/.gitignore b/mcp-adapter/.gitignore
new file mode 100644
index 0000000..a6c4445
--- /dev/null
+++ b/mcp-adapter/.gitignore
@@ -0,0 +1,37 @@
+# Dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Lock files
+package-lock.json
+yarn.lock
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage/
+*.lcov
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# Environment variables
+.env
+.env.local
+.env.*.local
+
+# Logs
+logs
+*.log
+
+# Optional REPL history
+.node_repl_history
\ No newline at end of file