host/oparic: switch to oparic-flakes lib.mkOparicContainer

Replace container-flake (feat/o4dev branch) dependency with
oparic-flakes (main) + direct o4dev service inputs. Container
is now built via mkOparicContainer with local config and secrets.

hosts/oparic-local-dev/configuration.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, inputs, ... }:
+{ config, lib, pkgs, inputs, o4devContainer, ... }:
 
 {
   imports =
@@ -149,7 +149,7 @@
       hostPort = 40000;
       protocol = "tcp";
     }];
-    path = inputs.container-flake.nixosConfigurations.o4dev.config.system.build.toplevel;
+    path = o4devContainer.config.system.build.toplevel;
   };
 
   system.stateVersion = "23.11";