diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..2eea525d885d5148108f6f3a9a8613863f783d36
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.env
\ No newline at end of file
diff --git a/app.py b/app.py
index 4a64dea452bdaddca006bec06705098e9f0f3751..3c253a44298444c36c32c563640fdda865028e41 100644
--- a/app.py
+++ b/app.py
@@ -18,7 +18,7 @@ def inicializar_rag():
     print(">>> Directory listing:", list(cwd.iterdir()))
 
     # 2) Aponte para o diretório RAG usando Pathlib e unix-style path
-    diretorio_rag = cwd / "RAG"
+    diretorio_rag = cwd / "app" / "RAG"
     print(f">>> Looking for files under: {diretorio_rag}")
 
     if not diretorio_rag.exists():
diff --git a/RAG/Chapters/B/B(BodyFunctions).txt b/app/RAG/Chapters/B/B(BodyFunctions).txt
similarity index 100%
rename from RAG/Chapters/B/B(BodyFunctions).txt
rename to app/RAG/Chapters/B/B(BodyFunctions).txt
diff --git a/RAG/Chapters/B/b1.txt b/app/RAG/Chapters/B/b1.txt
similarity index 100%
rename from RAG/Chapters/B/b1.txt
rename to app/RAG/Chapters/B/b1.txt
diff --git a/RAG/Chapters/B/b2.txt b/app/RAG/Chapters/B/b2.txt
similarity index 100%
rename from RAG/Chapters/B/b2.txt
rename to app/RAG/Chapters/B/b2.txt
diff --git a/RAG/Chapters/B/b3txt b/app/RAG/Chapters/B/b3txt
similarity index 100%
rename from RAG/Chapters/B/b3txt
rename to app/RAG/Chapters/B/b3txt
diff --git a/RAG/Chapters/B/b4.txt b/app/RAG/Chapters/B/b4.txt
similarity index 100%
rename from RAG/Chapters/B/b4.txt
rename to app/RAG/Chapters/B/b4.txt
diff --git a/RAG/Chapters/B/b5.txt b/app/RAG/Chapters/B/b5.txt
similarity index 100%
rename from RAG/Chapters/B/b5.txt
rename to app/RAG/Chapters/B/b5.txt
diff --git a/RAG/Chapters/B/b6.txt b/app/RAG/Chapters/B/b6.txt
similarity index 100%
rename from RAG/Chapters/B/b6.txt
rename to app/RAG/Chapters/B/b6.txt
diff --git a/RAG/Chapters/B/b7.txt b/app/RAG/Chapters/B/b7.txt
similarity index 100%
rename from RAG/Chapters/B/b7.txt
rename to app/RAG/Chapters/B/b7.txt
diff --git a/RAG/Chapters/B/b8.txt b/app/RAG/Chapters/B/b8.txt
similarity index 100%
rename from RAG/Chapters/B/b8.txt
rename to app/RAG/Chapters/B/b8.txt
diff --git a/RAG/Chapters/D/D(Activities&Participation).txt b/app/RAG/Chapters/D/D(Activities&Participation).txt
similarity index 100%
rename from RAG/Chapters/D/D(Activities&Participation).txt
rename to app/RAG/Chapters/D/D(Activities&Participation).txt
diff --git a/RAG/Chapters/D/d1.txt b/app/RAG/Chapters/D/d1.txt
similarity index 100%
rename from RAG/Chapters/D/d1.txt
rename to app/RAG/Chapters/D/d1.txt
diff --git a/RAG/Chapters/D/d2.txt b/app/RAG/Chapters/D/d2.txt
similarity index 100%
rename from RAG/Chapters/D/d2.txt
rename to app/RAG/Chapters/D/d2.txt
diff --git a/RAG/Chapters/D/d3.txt b/app/RAG/Chapters/D/d3.txt
similarity index 100%
rename from RAG/Chapters/D/d3.txt
rename to app/RAG/Chapters/D/d3.txt
diff --git a/RAG/Chapters/D/d4.txt b/app/RAG/Chapters/D/d4.txt
similarity index 100%
rename from RAG/Chapters/D/d4.txt
rename to app/RAG/Chapters/D/d4.txt
diff --git a/RAG/Chapters/D/d5.txt b/app/RAG/Chapters/D/d5.txt
similarity index 100%
rename from RAG/Chapters/D/d5.txt
rename to app/RAG/Chapters/D/d5.txt
diff --git a/RAG/Chapters/D/d6.txt b/app/RAG/Chapters/D/d6.txt
similarity index 100%
rename from RAG/Chapters/D/d6.txt
rename to app/RAG/Chapters/D/d6.txt
diff --git a/RAG/Chapters/D/d7.txt b/app/RAG/Chapters/D/d7.txt
similarity index 100%
rename from RAG/Chapters/D/d7.txt
rename to app/RAG/Chapters/D/d7.txt
diff --git a/RAG/Chapters/D/d8.txt b/app/RAG/Chapters/D/d8.txt
similarity index 100%
rename from RAG/Chapters/D/d8.txt
rename to app/RAG/Chapters/D/d8.txt
diff --git a/RAG/Chapters/D/d9.txt b/app/RAG/Chapters/D/d9.txt
similarity index 100%
rename from RAG/Chapters/D/d9.txt
rename to app/RAG/Chapters/D/d9.txt
diff --git a/RAG/Chapters/E/E(Environmental).txt b/app/RAG/Chapters/E/E(Environmental).txt
similarity index 100%
rename from RAG/Chapters/E/E(Environmental).txt
rename to app/RAG/Chapters/E/E(Environmental).txt
diff --git a/RAG/Chapters/E/e1.txt b/app/RAG/Chapters/E/e1.txt
similarity index 100%
rename from RAG/Chapters/E/e1.txt
rename to app/RAG/Chapters/E/e1.txt
diff --git a/RAG/Chapters/E/e2.txt b/app/RAG/Chapters/E/e2.txt
similarity index 100%
rename from RAG/Chapters/E/e2.txt
rename to app/RAG/Chapters/E/e2.txt
diff --git a/RAG/Chapters/E/e3.txt b/app/RAG/Chapters/E/e3.txt
similarity index 100%
rename from RAG/Chapters/E/e3.txt
rename to app/RAG/Chapters/E/e3.txt
diff --git a/RAG/Chapters/E/e4.txt b/app/RAG/Chapters/E/e4.txt
similarity index 100%
rename from RAG/Chapters/E/e4.txt
rename to app/RAG/Chapters/E/e4.txt
diff --git a/RAG/Chapters/E/e5.txt b/app/RAG/Chapters/E/e5.txt
similarity index 100%
rename from RAG/Chapters/E/e5.txt
rename to app/RAG/Chapters/E/e5.txt
diff --git a/RAG/Chapters/RAG_ b1.txt b/app/RAG/Chapters/RAG_ b1.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b1.txt
rename to app/RAG/Chapters/RAG_ b1.txt
diff --git a/RAG/Chapters/RAG_ b2.txt b/app/RAG/Chapters/RAG_ b2.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b2.txt
rename to app/RAG/Chapters/RAG_ b2.txt
diff --git a/RAG/Chapters/RAG_ b3.txt b/app/RAG/Chapters/RAG_ b3.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b3.txt
rename to app/RAG/Chapters/RAG_ b3.txt
diff --git a/RAG/Chapters/RAG_ b4.txt b/app/RAG/Chapters/RAG_ b4.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b4.txt
rename to app/RAG/Chapters/RAG_ b4.txt
diff --git a/RAG/Chapters/RAG_ b5.txt b/app/RAG/Chapters/RAG_ b5.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b5.txt
rename to app/RAG/Chapters/RAG_ b5.txt
diff --git a/RAG/Chapters/RAG_ b6.txt b/app/RAG/Chapters/RAG_ b6.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b6.txt
rename to app/RAG/Chapters/RAG_ b6.txt
diff --git a/RAG/Chapters/RAG_ b7.txt b/app/RAG/Chapters/RAG_ b7.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b7.txt
rename to app/RAG/Chapters/RAG_ b7.txt
diff --git a/RAG/Chapters/RAG_ b8.txt b/app/RAG/Chapters/RAG_ b8.txt
similarity index 100%
rename from RAG/Chapters/RAG_ b8.txt
rename to app/RAG/Chapters/RAG_ b8.txt
diff --git a/RAG/Chapters/S/S(BodyStructures).txt b/app/RAG/Chapters/S/S(BodyStructures).txt
similarity index 100%
rename from RAG/Chapters/S/S(BodyStructures).txt
rename to app/RAG/Chapters/S/S(BodyStructures).txt
diff --git a/RAG/Chapters/S/s1.txt b/app/RAG/Chapters/S/s1.txt
similarity index 100%
rename from RAG/Chapters/S/s1.txt
rename to app/RAG/Chapters/S/s1.txt
diff --git a/RAG/Chapters/S/s2.txt b/app/RAG/Chapters/S/s2.txt
similarity index 100%
rename from RAG/Chapters/S/s2.txt
rename to app/RAG/Chapters/S/s2.txt
diff --git a/RAG/Chapters/S/s3.txt b/app/RAG/Chapters/S/s3.txt
similarity index 100%
rename from RAG/Chapters/S/s3.txt
rename to app/RAG/Chapters/S/s3.txt
diff --git a/RAG/Chapters/S/s4.txt b/app/RAG/Chapters/S/s4.txt
similarity index 100%
rename from RAG/Chapters/S/s4.txt
rename to app/RAG/Chapters/S/s4.txt
diff --git a/RAG/Chapters/S/s5.txt b/app/RAG/Chapters/S/s5.txt
similarity index 100%
rename from RAG/Chapters/S/s5.txt
rename to app/RAG/Chapters/S/s5.txt
diff --git a/RAG/Chapters/S/s6.txt b/app/RAG/Chapters/S/s6.txt
similarity index 100%
rename from RAG/Chapters/S/s6.txt
rename to app/RAG/Chapters/S/s6.txt
diff --git a/RAG/Chapters/S/s7.txt b/app/RAG/Chapters/S/s7.txt
similarity index 100%
rename from RAG/Chapters/S/s7.txt
rename to app/RAG/Chapters/S/s7.txt
diff --git a/RAG/Chapters/S/s8.txt b/app/RAG/Chapters/S/s8.txt
similarity index 100%
rename from RAG/Chapters/S/s8.txt
rename to app/RAG/Chapters/S/s8.txt
diff --git a/RAG/b1.txt b/app/RAG/b1.txt
similarity index 100%
rename from RAG/b1.txt
rename to app/RAG/b1.txt
diff --git a/RAG/b2.txt b/app/RAG/b2.txt
similarity index 100%
rename from RAG/b2.txt
rename to app/RAG/b2.txt
diff --git a/RAG/b3.txt b/app/RAG/b3.txt
similarity index 100%
rename from RAG/b3.txt
rename to app/RAG/b3.txt
diff --git a/RAG/b4.txt b/app/RAG/b4.txt
similarity index 100%
rename from RAG/b4.txt
rename to app/RAG/b4.txt
diff --git a/RAG/b5.txt b/app/RAG/b5.txt
similarity index 100%
rename from RAG/b5.txt
rename to app/RAG/b5.txt
diff --git a/RAG/b6.txt b/app/RAG/b6.txt
similarity index 100%
rename from RAG/b6.txt
rename to app/RAG/b6.txt
diff --git a/RAG/b7.txt b/app/RAG/b7.txt
similarity index 100%
rename from RAG/b7.txt
rename to app/RAG/b7.txt
diff --git a/RAG/b8.txt b/app/RAG/b8.txt
similarity index 100%
rename from RAG/b8.txt
rename to app/RAG/b8.txt
diff --git a/RAG/d1.txt b/app/RAG/d1.txt
similarity index 100%
rename from RAG/d1.txt
rename to app/RAG/d1.txt
diff --git a/RAG/d2.txt b/app/RAG/d2.txt
similarity index 100%
rename from RAG/d2.txt
rename to app/RAG/d2.txt
diff --git a/RAG/d3.txt b/app/RAG/d3.txt
similarity index 100%
rename from RAG/d3.txt
rename to app/RAG/d3.txt
diff --git a/RAG/d4.txt b/app/RAG/d4.txt
similarity index 100%
rename from RAG/d4.txt
rename to app/RAG/d4.txt
diff --git a/RAG/d5.txt b/app/RAG/d5.txt
similarity index 100%
rename from RAG/d5.txt
rename to app/RAG/d5.txt
diff --git a/RAG/d6.txt b/app/RAG/d6.txt
similarity index 100%
rename from RAG/d6.txt
rename to app/RAG/d6.txt
diff --git a/RAG/d7.txt b/app/RAG/d7.txt
similarity index 100%
rename from RAG/d7.txt
rename to app/RAG/d7.txt
diff --git a/RAG/d8.txt b/app/RAG/d8.txt
similarity index 100%
rename from RAG/d8.txt
rename to app/RAG/d8.txt
diff --git a/RAG/d9.txt b/app/RAG/d9.txt
similarity index 100%
rename from RAG/d9.txt
rename to app/RAG/d9.txt
diff --git a/RAG/e1.txt b/app/RAG/e1.txt
similarity index 100%
rename from RAG/e1.txt
rename to app/RAG/e1.txt
diff --git a/RAG/e2.txt b/app/RAG/e2.txt
similarity index 100%
rename from RAG/e2.txt
rename to app/RAG/e2.txt
diff --git a/RAG/e3.txt b/app/RAG/e3.txt
similarity index 100%
rename from RAG/e3.txt
rename to app/RAG/e3.txt
diff --git a/RAG/e4.txt b/app/RAG/e4.txt
similarity index 100%
rename from RAG/e4.txt
rename to app/RAG/e4.txt
diff --git a/RAG/e5.txt b/app/RAG/e5.txt
similarity index 100%
rename from RAG/e5.txt
rename to app/RAG/e5.txt
diff --git a/RAG/s1.txt b/app/RAG/s1.txt
similarity index 100%
rename from RAG/s1.txt
rename to app/RAG/s1.txt
diff --git a/RAG/s2.txt b/app/RAG/s2.txt
similarity index 100%
rename from RAG/s2.txt
rename to app/RAG/s2.txt
diff --git a/RAG/s3.txt b/app/RAG/s3.txt
similarity index 100%
rename from RAG/s3.txt
rename to app/RAG/s3.txt
diff --git a/RAG/s4.txt b/app/RAG/s4.txt
similarity index 100%
rename from RAG/s4.txt
rename to app/RAG/s4.txt
diff --git a/RAG/s5.txt b/app/RAG/s5.txt
similarity index 100%
rename from RAG/s5.txt
rename to app/RAG/s5.txt
diff --git a/RAG/s6.txt b/app/RAG/s6.txt
similarity index 100%
rename from RAG/s6.txt
rename to app/RAG/s6.txt
diff --git a/RAG/s7.txt b/app/RAG/s7.txt
similarity index 100%
rename from RAG/s7.txt
rename to app/RAG/s7.txt
diff --git a/RAG/s8.txt b/app/RAG/s8.txt
similarity index 100%
rename from RAG/s8.txt
rename to app/RAG/s8.txt