feat: Puente Mayúscula-Minúscula + TTS SpeechSynthesis + E2E fixes

e2e/api-curriculum.spec.ts

@@ -0,0 +1,71 @@
+import { test, expect } from "@playwright/test"
+
+test.describe("Curriculum API", () => {
+  test("TTS endpoint generates audio", async ({ request }) => {
+    const res = await request.get("/api/tts?text=hola%20mundo")
+    expect(res.ok()).toBeTruthy()
+    expect(res.headers()["content-type"]).toBe("audio/wav")
+    const body = await res.body()
+    expect(body.length).toBeGreaterThan(1000)
+  })
+
+  test("TTS requires text param", async ({ request }) => {
+    const res = await request.get("/api/tts")
+    expect(res.status()).toBe(400)
+    const json = await res.json()
+    expect(json.error).toContain("text param")
+  })
+
+  test("TTS text too long returns 400", async ({ request }) => {
+    const long = "a".repeat(250)
+    const res = await request.get(`/api/tts?text=${long}`)
+    expect(res.status()).toBe(400)
+  })
+
+  test("curriculum/next requires childId", async ({ request }) => {
+    const res = await request.get("/api/curriculum/next")
+    expect(res.status()).toBe(400)
+    const json = await res.json()
+    expect(json.error).toContain("childId")
+  })
+
+  test("curriculum/next accepts childId param", async ({ request }) => {
+    const res = await request.get("/api/curriculum/next?childId=any&topic=lectura")
+    expect(res.status()).toBe(200)
+    const json = await res.json()
+    expect(json).toBeDefined()
+  })
+
+  test("curriculum/grade missing fields returns 400", async ({ request }) => {
+    const res = await request.post("/api/curriculum/grade", {
+      data: {},
+    })
+    expect(res.status()).toBe(400)
+    const json = await res.json()
+    expect(json.error).toBe("Missing required fields")
+  })
+
+  test("curriculum/grade validates required fields", async ({ request }) => {
+    const res = await request.post("/api/curriculum/grade", {
+      data: { childId: "test", exerciseId: "ex1", skillCode: "test" },
+      headers: { "Content-Type": "application/json" },
+    })
+    expect(res.status()).toBe(400)
+    const json = await res.json()
+    expect(json.error).toBe("No active session")
+  })
+
+  test("curriculum/progress requires childId", async ({ request }) => {
+    const res = await request.get("/api/curriculum/progress")
+    expect(res.status()).toBe(400)
+    const json = await res.json()
+    expect(json.error).toContain("childId")
+  })
+
+  test("dashboard/summary requires childId", async ({ request }) => {
+    const res = await request.get("/api/dashboard/summary")
+    expect(res.status()).toBe(400)
+    const json = await res.json()
+    expect(json.error).toContain("childId")
+  })
+})