Fix audit generation and enrichment fallback

lib/ai/schemas.ts

@@ -1,16 +1,47 @@
 import { z } from "zod";
 
-export const findingItemSchema = z.object({
+const nonEmptyTextSchema = z.string().trim().min(1);
+
+export const legacyFindingItemSchema = z.object({
   section: z.string(),
   finding: z.string(),
   suggestion: z.string(),
 });
 
+export const v3FindingItemSchema = z.object({
+  skill_id: nonEmptyTextSchema,
+  observation: nonEmptyTextSchema,
+  customer_benefit: nonEmptyTextSchema,
+  public_phrasing: nonEmptyTextSchema,
+  severity: z.union([z.literal(1), z.literal(2), z.literal(3)]),
+  evidence: nonEmptyTextSchema,
+  applies: z.boolean(),
+});
+
+export const findingItemSchema = legacyFindingItemSchema;
+
 export const internalFindingsSchema = z.object({
   findings: z.array(findingItemSchema),
   summary: z.string(),
 });
 
+export const auditClassificationSchema = z.object({
+  findings: z.array(v3FindingItemSchema).min(1),
+  summary: nonEmptyTextSchema,
+  usedSkills: z.array(nonEmptyTextSchema).nullable(),
+});
+
+export const auditGenerationResultSchema = z.object({
+  findings: z.array(v3FindingItemSchema).min(1),
+  usedSkills: z.array(nonEmptyTextSchema).min(1),
+  publicAuditText: nonEmptyTextSchema,
+  finalSummary: nonEmptyTextSchema,
+  emailSubject: nonEmptyTextSchema,
+  emailBody: nonEmptyTextSchema,
+  phoneScript: nonEmptyTextSchema,
+  ctaType: z.enum(["anruf", "termin", "rueckruf"]),
+});
+
 export const auditSummarySchema = z.object({
   summary: z.string(),
   keyFindings: z.array(z.string()),
@@ -36,19 +67,22 @@ export const callScriptSchema = z.object({
 
 export const followUpDraftSchema = z.object({
   message: z.string(),
-  followInDays: z.number().int().min(0).optional(),
-  goals: z.array(z.string()).optional(),
+  followInDays: z.number().int().min(0).nullable(),
+  goals: z.array(z.string()).nullable(),
 });
 
 export const qualityReviewSchema = z.object({
   isValid: z.boolean(),
   issues: z.array(z.string()),
   suggestions: z.array(z.string()),
-  notes: z.array(z.string()).optional(),
+  notes: z.array(z.string()).nullable(),
 });
 
 export type FindingItem = z.infer<typeof findingItemSchema>;
+export type V3FindingItem = z.infer<typeof v3FindingItemSchema>;
 export type InternalFindings = z.infer<typeof internalFindingsSchema>;
+export type AuditClassification = z.infer<typeof auditClassificationSchema>;
+export type AuditGenerationResult = z.infer<typeof auditGenerationResultSchema>;
 export type AuditSummary = z.infer<typeof auditSummarySchema>;
 export type PublicAuditText = z.infer<typeof publicAuditTextSchema>;
 export type EmailDraft = z.infer<typeof emailDraftSchema>;