Move digger reproduction env to tools/reproduction/

- Moved bttoxin_digger_v5_repro to tools/reproduction/bttoxin_digger
- Updated docker-compose.yml to point to the new location
- This declutters the root directory while preserving the reproduction environment

tools/reproduction/bttoxin_digger/docker-compose.yml

@@ -0,0 +1,12 @@
+services:
+  digger-repro:
+    build:
+      context: .
+      dockerfile: docker/Dockerfile
+    image: bttoxin-digger:v5-repro
+    volumes:
+      - ./examples/inputs:/app/jobs
+      - ./examples:/app/examples
+    # Mount the current directory to verify outputs easily if needed
+    # But the DB is now baked in, so no need to mount external_dbs
+    command: pixi run BtToxin_Digger --help