Checkpoint: Ajout de l'association Service→Signature dans l'onglet Signatures des Paramètres et apposition automatique de la signature sur les PDFs exportés lors de l'export BAP. Inclut : table serviceSignatures, routes tRPC, interface de configuration, et modification de exportToPdf pour apposer la signature en bas à droite du PDF avec le nom du signataire.

server/db.ts

@@ -35,7 +35,10 @@ import {
   LlmFieldConfig,
   signatures,
   InsertSignature,
-  Signature
+  Signature,
+  serviceSignatures,
+  InsertServiceSignature,
+  ServiceSignature
 } from "../drizzle/schema";
 import { ENV } from './_core/env';
 
@@ -701,3 +704,40 @@ export async function deleteSignature(id: number): Promise<void> {
   if (!db) return;
   await db.delete(signatures).where(eq(signatures.id, id));
 }
+
+// ============= SERVICE SIGNATURES HELPERS =============
+
+export async function getServiceSignaturesByUser(userId: number): Promise<ServiceSignature[]> {
+  const db = await getDb();
+  if (!db) return [];
+  return db.select().from(serviceSignatures).where(eq(serviceSignatures.userId, userId));
+}
+
+export async function getServiceSignatureByService(userId: number, serviceName: string): Promise<ServiceSignature | undefined> {
+  const db = await getDb();
+  if (!db) return undefined;
+  const results = await db.select().from(serviceSignatures)
+    .where(eq(serviceSignatures.userId, userId))
+    .limit(1);
+  // Filter in JS to avoid SQL case sensitivity issues
+  return results.find(r => r.serviceName.toLowerCase() === serviceName.toLowerCase());
+}
+
+export async function upsertServiceSignature(data: InsertServiceSignature): Promise<void> {
+  const db = await getDb();
+  if (!db) throw new Error("Database not available");
+  await db.insert(serviceSignatures).values(data)
+    .onDuplicateKeyUpdate({
+      set: { signatureId: data.signatureId, updatedAt: new Date() }
+    });
+}
+
+export async function deleteServiceSignature(userId: number, serviceName: string): Promise<void> {
+  const db = await getDb();
+  if (!db) return;
+  const all = await db.select().from(serviceSignatures).where(eq(serviceSignatures.userId, userId));
+  const match = all.find(r => r.serviceName.toLowerCase() === serviceName.toLowerCase());
+  if (match) {
+    await db.delete(serviceSignatures).where(eq(serviceSignatures.id, match.id));
+  }
+}