feat: goddess sync, sanitize, and apotheosis init (chunk 3)

- initialState: add initialGoddessState() with all goddess sub-objects
- apotheosis: init GoddessState on first apotheosis, preserve on subsequent
- game: add goddessSpread block in validateAndSanitize (server-only fields capped, forward-only boss/quest/achievement enforcement)
- debug: add injectMissingGoddessExplorationAreas helper and inject all 8 goddess content arrays in syncNewContent
- vitest.config.ts: remove 8 goddess data files from coverage exclude (now imported via initialState)
- tests: full coverage for all new code (482 tests, 100% coverage)

apps/api/test/services/apotheosis.spec.ts

@@ -112,4 +112,40 @@ describe("buildPostApotheosisState", () => {
     const { updatedState } = buildPostApotheosisState(state, "T");
     expect(updatedState.apotheosis?.count).toBe(1);
   });
+
+  it("initialises goddess state on first apotheosis (count goes to 1)", () => {
+    const state = makeMinimalState();
+    const { updatedState } = buildPostApotheosisState(state, "T");
+    expect(updatedState.goddess).toBeDefined();
+  });
+
+  it("preserves existing goddess state on second apotheosis (count goes to 2)", () => {
+    const goddessState: GameState["goddess"] = {
+      achievements:            [],
+      baseClickPower:          1,
+      bosses:                  [],
+      consecration:            { count: 0, divinity: 0, productionMultiplier: 1, purchasedUpgradeIds: [] },
+      disciples:               [],
+      enlightenment:           { count: 0, purchasedUpgradeIds: [], stardust: 0, stardustCombatMultiplier: 1, stardustConsecrationDivinityMultiplier: 1, stardustConsecrationThresholdMultiplier: 1, stardustMetaMultiplier: 1, stardustPrayersMultiplier: 1 },
+      equipment:               [],
+      exploration:             { areas: [], craftedCombatMultiplier: 1, craftedDivinityMultiplier: 1, craftedPrayersMultiplier: 1, craftedRecipeIds: [], materials: [] },
+      lastTickAt:              0,
+      lifetimeBossesDefeated:  0,
+      lifetimePrayersEarned:   0,
+      lifetimeQuestsCompleted: 0,
+      quests:                  [],
+      totalPrayersEarned:      0,
+      upgrades:                [],
+      zones:                   [],
+    };
+    const state = makeMinimalState({ apotheosis: { count: 1 }, goddess: goddessState });
+    const { updatedState } = buildPostApotheosisState(state, "T");
+    expect(updatedState.goddess).toEqual(goddessState);
+  });
+
+  it("does not add goddess when count goes to 2 but no goddess exists on current state", () => {
+    const state = makeMinimalState({ apotheosis: { count: 1 } });
+    const { updatedState } = buildPostApotheosisState(state, "T");
+    expect(updatedState.goddess).toBeUndefined();
+  });
 });