fix: add react-is dependency for recharts

This is a peer dependency required for recharts to work properly
in production builds.

flake.nix

@@ -12,7 +12,7 @@
         pkgs = import nixpkgs { inherit system; };
 
         # NPM dependencies hash (update with: nix run nixpkgs#prefetch-npm-deps -- package-lock.json)
-        npmDepsHash = "sha256-J6b+nDIWqL6K9XNVo1SBdIALUPCEgMUAnzqeZyOK6pI=";
+        npmDepsHash = "sha256-qJdZprh14BOP1oZXZ32A7cJDKh0fKZ1cuppgmOeBt1w=";
 
         # Import helpers
         mkViteApp = import ./nix/mkViteApp.nix {
@@ -107,7 +107,7 @@
           mkHackathonWithEnv = envVars: import ./nix/mkViteApp.nix {
             pkgs = final;
             src = self;
-            npmDepsHash = "sha256-J6b+nDIWqL6K9XNVo1SBdIALUPCEgMUAnzqeZyOK6pI=";
+            npmDepsHash = "sha256-qJdZprh14BOP1oZXZ32A7cJDKh0fKZ1cuppgmOeBt1w=";
           } { name = "hackathon"; buildScript = "hackathon:build"; inherit envVars; };
         };
       };

package-lock.json

@@ -37,6 +37,7 @@
         "react-dom": "^19.2.1",
         "react-hook-form": "^7.56.4",
         "react-icons": "^5.5.0",
+        "react-is": "^19.2.3",
         "react-router-dom": "^7.3.0",
         "recharts": "^3.1.2",
         "sharp": "^0.34.1",
@@ -24321,6 +24322,12 @@
         "react": "*"
       }
     },
+    "node_modules/react-is": {
+      "version": "19.2.3",
+      "resolved": "https://registry.npmjs.org/react-is/-/react-is-19.2.3.tgz",
+      "integrity": "sha512-qJNJfu81ByyabuG7hPFEbXqNcWSU3+eVus+KJs+0ncpGfMyYdvSmxiJxbWR65lYi1I+/0HBcliO029gc4F+PnA==",
+      "license": "MIT"
+    },
     "node_modules/react-redux": {
       "version": "9.2.0",
       "resolved": "https://registry.npmjs.org/react-redux/-/react-redux-9.2.0.tgz",

package.json

@@ -60,6 +60,7 @@
     "react-dom": "^19.2.1",
     "react-hook-form": "^7.56.4",
     "react-icons": "^5.5.0",
+    "react-is": "^19.2.3",
     "react-router-dom": "^7.3.0",
     "recharts": "^3.1.2",
     "sharp": "^0.34.1",