add a schema version

src/lib/store/__snapshots__/ship.test.ts.snap

@@ -0,0 +1,99 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`state has the expected shape 1`] = `
+{
+  "carrier": {
+    "nbrBays": 0,
+    "reqs": {
+      "cost": 0,
+      "mass": 0,
+    },
+    "squadrons": [],
+  },
+  "identification": {
+    "isCarrier": false,
+    "reqs": {
+      "cost": 0,
+      "mass": 10,
+      "usedMass": 0,
+    },
+    "shipClass": "",
+    "shipType": "",
+  },
+  "propulsion": {
+    "drive": {
+      "advanced": false,
+      "rating": 0,
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+    },
+    "ftl": {
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+      "type": "none",
+    },
+  },
+  "schemaVersion": "1",
+  "structure": {
+    "armor": {
+      "layers": [],
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+    },
+    "cargo": {
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+      "space": 0,
+    },
+    "hull": {
+      "max": 0,
+      "min": 0,
+      "rating": 0,
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+    },
+    "screens": {
+      "advanced": 0,
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+      "standard": 0,
+    },
+    "streamlining": {
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+      "type": "none",
+    },
+  },
+  "weaponry": {
+    "adfc": {
+      "rating": 0,
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+    },
+    "firecons": {
+      "reqs": {
+        "cost": 0,
+        "mass": 0,
+      },
+      "stations": 0,
+    },
+    "weapons": [],
+  },
+}
+`;

src/lib/store/ship.test.ts

@@ -59,3 +59,11 @@ test("kicking the tires", () => {
     },
   });
 });
+
+test("state has a schema version", () => {
+  expect(ship.initialState).toHaveProperty("schemaVersion");
+});
+
+test("state has the expected shape", () => {
+  expect(ship.initialState).toMatchSnapshot();
+});

src/lib/store/ship.ts

@@ -51,6 +51,9 @@ const weaponry = new Updux({
 });
 
 const shipDux = new Updux({
+  initialState: {
+    schemaVersion: "1",
+  },
   subduxes: {
     identification,
     structure,