fix: correct lefthook command syntax

lefthook.yml

@@ -2,24 +2,12 @@
   "$schema": "https://json.schemastore.org/lefthook.json",
   "pre-push": {
     "commands": {
-      "go-fmt": {
-        cmd: "go fmt ./..."
-      },
-      "go-vet": {
-        cmd: "go vet ./..."
-      },
-      "go-test": {
-        cmd: "go test ./..."
-      },
-      "ts-typecheck": {
-        cmd: "bunx tsc -p tsconfig.json --noEmit"
-      },
-      "build-assets": {
-        cmd: "bun run build:assets"
-      },
-      "go-build": {
-        cmd: "go build -o server ./cmd/server"
-      }
+      "go-fmt": { "run": "go fmt ./..." },
+      "go-vet": { "run": "go vet ./..." },
+      "go-test": { "run": "go test ./..." },
+      "ts-typecheck": { "run": "bunx tsc -p tsconfig.json --noEmit" },
+      "build-assets": { "run": "bun run build:assets" },
+      "go-build": { "run": "go build -o server ./cmd/server" }
     }
   }
 }