Update fly.toml to adjust [env] paths and simplify volume mounts configuration

fly.toml

@@ -7,11 +7,11 @@ kill_timeout = 5
   dockerfile = "Dockerfile"
 
 [env]
-  PORT = "3000"            # Caddy (serves frontend + proxies /api/*)
+  PORT = "3000"
   NODE_ENV = "production"
-  BACKEND_PORT = "8080"    # Fastify backend will listen here
-  DATABASE_PATH = "/app/data/gallus_cms.db"
-  GIT_WORKSPACE_DIR = "/app/workspace"
+  BACKEND_PORT = "8080"
+  DATABASE_PATH = "/app/data/db/gallus_cms.db"
+  GIT_WORKSPACE_DIR = "/app/data/workspace"
 
 [http_service]
   internal_port = 3000
@@ -46,8 +46,4 @@ kill_timeout = 5
 
 [[mounts]]
   source = "gallus_data"
-  destination = "/app/data"
-
-[[mounts]]
-  source = "gallus_workspace"
-  destination = "/app/workspace"
+  destination = "/app/data"