Split native Periscope (periscope/src) from inherited PinScope (periscope/dependency).

Keep validate.py and the finding engine as-is. AGPL LICENSE stays at the repo root.
Docker overlays dependency then src. Do not delete the inherited tree.

docker-compose.yml

@@ -10,7 +10,7 @@ services:
   backend:
     build:
       context: .
-      dockerfile: backend/Dockerfile
+      dockerfile: periscope/src/backend/Dockerfile
 
     container_name: periscope-backend
     restart: unless-stopped
@@ -25,7 +25,7 @@ services:
 
     volumes:
       - ./data:/app/data
-      - ./taxonomy:/app/taxonomy
+      - ./periscope/dependency/taxonomy:/app/taxonomy
 
     ports:
       - "8080:8080"
@@ -38,8 +38,8 @@ services:
 
   frontend:
     build:
-      context: ./frontend
-      dockerfile: dockerfile
+      context: .
+      dockerfile: periscope/src/frontend/dockerfile
       args:
         NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL:-http://localhost:8080}
         NEXT_PUBLIC_AUTH_MODE: ${NEXT_PUBLIC_AUTH_MODE:-}