replace nix-filter with crane source filtering

flake.lock

@@ -15,21 +15,6 @@
         "type": "github"
       }
     },
-    "nix-filter": {
-      "locked": {
-        "lastModified": 1757882181,
-        "narHash": "sha256-+cCxYIh2UNalTz364p+QYmWHs0P+6wDhiWR4jDIKQIU=",
-        "owner": "numtide",
-        "repo": "nix-filter",
-        "rev": "59c44d1909c72441144b93cf0f054be7fe764de5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "nix-filter",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1779622335,
@@ -49,7 +34,6 @@
     "root": {
       "inputs": {
         "crane": "crane",
-        "nix-filter": "nix-filter",
         "nixpkgs": "nixpkgs",
         "treefmt-nix": "treefmt-nix"
       }

flake.nix

@@ -3,7 +3,6 @@
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-26.05";
-    nix-filter.url = "github:numtide/nix-filter";
     crane.url = "github:ipetkov/crane";
     treefmt-nix = {
       url = "github:numtide/treefmt-nix";
@@ -16,7 +15,6 @@
       self,
       nixpkgs,
       crane,
-      nix-filter,
       treefmt-nix,
     }:
     let
@@ -52,16 +50,7 @@
         let
           craneLib = crane.mkLib pkgs;
           commonArgs = {
-            src = nix-filter.lib.filter {
-              root = ./.;
-              include = [
-                ./Cargo.toml
-                ./Cargo.lock
-                ./src
-                ./README.md
-                ./LICENSE
-              ];
-            };
+            src = craneLib.cleanCargoSource ./.;
             strictDeps = true;
             nativeBuildInputs = with pkgs; [
               pkg-config