Checkpoint: Ajout de Google Gemini (gemini-2.0-flash) comme 3ème moteur IA : schéma DB mis à jour (enum aiProvider + colonne geminiApiKey dans userSettings et importSettings), llm.ts mis à jour avec routing vers l'API Google AI Studio (compatible OpenAI), fenêtre de configuration IA mise à jour avec 3 cartes (Mistral / Gemini / Manus) et champ clé API Gemini.

.gitignore

@@ -105,3 +105,4 @@ temp/
 *.db
 *.sqlite
 *.sqlite3
+.project-config.json

client/src/pages/Settings.tsx

@@ -677,12 +677,14 @@ export default function Settings() {
   const [sftpAutoExport, setSftpAutoExport] = useState(false);
   const [sftpRecipientFilter, setSftpRecipientFilter] = useState("");
   const [llmLogsRetentionMonths, setLlmLogsRetentionMonths] = useState(3);
-  const [aiProvider, setAiProvider] = useState<"mistral" | "manus">("mistral");
+  const [aiProvider, setAiProvider] = useState<"mistral" | "manus" | "gemini">("mistral");
   const [mistralApiKey, setMistralApiKey] = useState("");
   const [manusForgeApiKey, setManusForgeApiKey] = useState("");
   const [manusForgeApiUrl, setManusForgeApiUrl] = useState("");
+  const [geminiApiKey, setGeminiApiKey] = useState("");
   const [showMistralKey, setShowMistralKey] = useState(false);
   const [showManusKey, setShowManusKey] = useState(false);
+  const [showGeminiKey, setShowGeminiKey] = useState(false);
 
   useEffect(() => {
     if (settings) {
@@ -706,6 +708,7 @@ export default function Settings() {
       setMistralApiKey((settings as any).mistralApiKey || "");
       setManusForgeApiKey((settings as any).manusForgeApiKey || "");
       setManusForgeApiUrl((settings as any).manusForgeApiUrl || "");
+      setGeminiApiKey((settings as any).geminiApiKey || "");
     }
   }, [settings]);
 
@@ -754,6 +757,7 @@ export default function Settings() {
       mistralApiKey,
       manusForgeApiKey,
       manusForgeApiUrl,
+      geminiApiKey,
     });
   };
 
@@ -853,7 +857,7 @@ export default function Settings() {
               <CardContent className="space-y-6 pt-6">
 
                 {/* Provider selector */}
-                <div className="grid grid-cols-2 gap-4">
+                <div className="grid grid-cols-3 gap-4">
                   <button
                     type="button"
                     onClick={() => setAiProvider("mistral")}
@@ -880,6 +884,36 @@ export default function Settings() {
                     )}
                   </button>
 
+                  {/* Google Gemini */}
+                  <button
+                    type="button"
+                    onClick={() => setAiProvider("gemini")}
+                    className={`relative flex flex-col items-center gap-3 p-5 rounded-xl border-2 transition-all cursor-pointer ${
+                      aiProvider === "gemini"
+                        ? "border-green-500 bg-green-50 dark:bg-green-950/20 shadow-md"
+                        : "border-muted hover:border-green-300 bg-background"
+                    }`}
+                  >
+                    {aiProvider === "gemini" && (
+                      <div className="absolute top-2 right-2">
+                        <CheckCircle className="w-5 h-5 text-green-500" />
+                      </div>
+                    )}
+                    <div className="p-3 bg-green-100 dark:bg-green-900/30 rounded-xl">
+                      <svg className="w-8 h-8" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+                        <path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2z" fill="#4285F4"/>
+                        <path d="M12 6l1.5 4.5H18l-3.75 2.75L15.75 18 12 15.25 8.25 18l1.5-4.75L6 10.5h4.5L12 6z" fill="white"/>
+                      </svg>
+                    </div>
+                    <div className="text-center">
+                      <p className="font-bold text-base">Google Gemini</p>
+                      <p className="text-xs text-muted-foreground mt-1">Gemini 2.0 Flash<br/>Gratuit (1500 req/j)</p>
+                    </div>
+                    {aiProvider === "gemini" && (
+                      <Badge className="bg-green-500 text-white text-xs">Actif</Badge>
+                    )}
+                  </button>
+
                   <button
                     type="button"
                     onClick={() => setAiProvider("manus")}
@@ -938,6 +972,46 @@ export default function Settings() {
                   </div>
                 )}
 
+                {/* Gemini config */}
+                {aiProvider === "gemini" && (
+                  <div className="space-y-4 p-4 bg-green-50 dark:bg-green-950/10 rounded-xl border border-green-200 dark:border-green-800">
+                    <div className="flex items-center justify-between">
+                      <p className="text-sm font-semibold text-green-700 dark:text-green-400 uppercase tracking-wide">Configuration Google Gemini</p>
+                      <Badge className="bg-green-100 text-green-700 border border-green-300 text-xs font-normal">Gratuit — 1 500 req/jour</Badge>
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="geminiApiKey" className="font-medium">Clé API Google AI Studio</Label>
+                      <div className="relative">
+                        <Input
+                          id="geminiApiKey"
+                          type={showGeminiKey ? "text" : "password"}
+                          value={geminiApiKey}
+                          onChange={(e) => setGeminiApiKey(e.target.value)}
+                          placeholder="Votre clé API Google (ex: AIzaSy...)"
+                          className="h-11 pr-10"
+                        />
+                        <button
+                          type="button"
+                          onClick={() => setShowGeminiKey(!showGeminiKey)}
+                          className="absolute right-3 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
+                        >
+                          {showGeminiKey ? <EyeOff className="w-4 h-4" /> : <Eye className="w-4 h-4" />}
+                        </button>
+                      </div>
+                      <p className="text-xs text-muted-foreground flex items-center gap-1">
+                        <AlertCircle className="w-3 h-3" />
+                        Obtenez votre clé gratuite sur{" "}
+                        <a href="https://aistudio.google.com/apikey" target="_blank" rel="noopener noreferrer" className="text-green-600 hover:underline">aistudio.google.com/apikey</a>.
+                        Laissez vide pour utiliser la variable d'environnement GEMINI_API_KEY du serveur.
+                      </p>
+                    </div>
+                    <div className="p-3 bg-green-100 dark:bg-green-900/20 rounded-lg border border-green-200 dark:border-green-800">
+                      <p className="text-xs text-green-800 dark:text-green-300 font-medium">Modèle utilisé : <span className="font-bold">gemini-2.0-flash</span></p>
+                      <p className="text-xs text-green-700 dark:text-green-400 mt-1">Analyse directe des PDF, extraction structurée JSON, compatible avec l'interface OpenAI.</p>
+                    </div>
+                  </div>
+                )}
+
                 {/* Manus config */}
                 {aiProvider === "manus" && (
                   <div className="space-y-4 p-4 bg-blue-50 dark:bg-blue-950/10 rounded-xl border border-blue-200 dark:border-blue-800">
@@ -993,14 +1067,14 @@ export default function Settings() {
                   <div>
                     <CardTitle className="text-xl">Configuration du modèle AI</CardTitle>
                     <CardDescription className="mt-1">
-                      Paramètres du modèle d'extraction Mistral AI
+                      Paramètres avancés du modèle d'extraction IA
                     </CardDescription>
                   </div>
                 </div>
               </CardHeader>
               <CardContent className="space-y-6 pt-6">
                 <div className="space-y-3">
-                  <Label htmlFor="llmModel" className="text-base font-semibold">Modèle Mistral</Label>
+                  <Label htmlFor="llmModel" className="text-base font-semibold">Modèle IA (override)</Label>
                   <Input
                     id="llmModel"
                     value={llmModel}

drizzle/0034_black_shadowcat.sql

@@ -0,0 +1,4 @@
+ALTER TABLE `importSettings` MODIFY COLUMN `aiProvider` enum('mistral','manus','gemini') NOT NULL DEFAULT 'mistral';--> statement-breakpoint
+ALTER TABLE `userSettings` MODIFY COLUMN `aiProvider` enum('mistral','manus','gemini') NOT NULL DEFAULT 'mistral';--> statement-breakpoint
+ALTER TABLE `importSettings` ADD `geminiApiKey` text;--> statement-breakpoint
+ALTER TABLE `userSettings` ADD `geminiApiKey` text;

drizzle/meta/_journal.json

@@ -239,6 +239,13 @@
       "when": 1783419609559,
       "tag": "0033_strange_manta",
       "breakpoints": true
+    },
+    {
+      "idx": 34,
+      "version": "5",
+      "when": 1785167359371,
+      "tag": "0034_black_shadowcat",
+      "breakpoints": true
     }
   ]
 }

drizzle/schema.ts

@@ -149,10 +149,11 @@ export const userSettings = mysqlTable("userSettings", {
   // Seuil de confiance pour les apprentissages IA
   learningConfidenceThreshold: int("learningConfidenceThreshold").default(2).notNull(), // Nombre minimum d'applications pour marquer un apprentissage comme Confirmé
   // AI Engine configuration
-  aiProvider: mysqlEnum("aiProvider", ["mistral", "manus"]).default("mistral").notNull(), // AI provider: 'mistral' or 'manus'
+  aiProvider: mysqlEnum("aiProvider", ["mistral", "manus", "gemini"]).default("mistral").notNull(), // AI provider: 'mistral', 'manus' or 'gemini'
   mistralApiKey: text("mistralApiKey"), // Mistral API key (overrides env MISTRAL_API_KEY)
   manusForgeApiKey: text("manusForgeApiKey"), // Manus Forge API key (overrides env BUILT_IN_FORGE_API_KEY)
   manusForgeApiUrl: text("manusForgeApiUrl"), // Manus Forge API URL (overrides env BUILT_IN_FORGE_API_URL)
+  geminiApiKey: text("geminiApiKey"), // Google Gemini API key (overrides env GEMINI_API_KEY)
   createdAt: timestamp("createdAt").defaultNow().notNull(),
   updatedAt: timestamp("updatedAt").defaultNow().onUpdateNow().notNull(),
 });
@@ -196,10 +197,11 @@ export const importSettings = mysqlTable("importSettings", {
   azureSecretExpiresAt: timestamp("azureSecretExpiresAt"), // Azure AD Client Secret expiration date
 
   // AI Engine settings
-  aiProvider: mysqlEnum("aiProvider", ["mistral", "manus"]).default("mistral").notNull(), // AI provider for invoice extraction
+  aiProvider: mysqlEnum("aiProvider", ["mistral", "manus", "gemini"]).default("mistral").notNull(), // AI provider for invoice extraction
   mistralApiKey: text("mistralApiKey"), // Mistral API key (overrides env MISTRAL_API_KEY)
   manusForgeApiKey: text("manusForgeApiKey"), // Manus Forge API key (overrides env BUILT_IN_FORGE_API_KEY)
   manusForgeApiUrl: text("manusForgeApiUrl"), // Manus Forge API URL (overrides env BUILT_IN_FORGE_API_URL)
+  geminiApiKey: text("geminiApiKey"), // Google Gemini API key (overrides env GEMINI_API_KEY)
 
   createdAt: timestamp("createdAt").defaultNow().notNull(),
   updatedAt: timestamp("updatedAt").defaultNow().onUpdateNow().notNull(),

server/_core/env.ts

@@ -8,4 +8,5 @@ export const ENV = {
   forgeApiUrl: process.env.BUILT_IN_FORGE_API_URL ?? "",
   forgeApiKey: process.env.BUILT_IN_FORGE_API_KEY ?? "",
   mistralApiKey: process.env.MISTRAL_API_KEY ?? "",
+  geminiApiKey: process.env.GEMINI_API_KEY ?? "",
 };

server/_core/llm.ts

@@ -283,31 +283,45 @@ const normalizeResponseFormat = ({
 /**
  * Résout l'URL API en tenant compte des paramètres utilisateur (DB) en priorité sur les variables d'environnement.
  */
-function resolveApiUrlWithSettings(settings?: { aiProvider?: string | null; mistralApiKey?: string | null; manusForgeApiKey?: string | null; manusForgeApiUrl?: string | null }): string {
+function resolveApiUrlWithSettings(settings?: { aiProvider?: string | null; mistralApiKey?: string | null; manusForgeApiKey?: string | null; manusForgeApiUrl?: string | null; geminiApiKey?: string | null }): string {
   const provider = settings?.aiProvider || "mistral";
   if (provider === "mistral") {
     return "https://api.mistral.ai/v1/chat/completions";
   }
+  if (provider === "gemini") {
+    // Google AI Studio — interface compatible OpenAI
+    return "https://generativelanguage.googleapis.com/v1beta/openai/chat/completions";
+  }
   // Manus provider
   const forgeUrl = settings?.manusForgeApiUrl || ENV.forgeApiUrl || "https://forge.manus.ai";
   return `${forgeUrl.replace(/\/$/, "")}/v1/chat/completions`;
 }
 
-function getApiKeyWithSettings(settings?: { aiProvider?: string | null; mistralApiKey?: string | null; manusForgeApiKey?: string | null }): string {
+function getApiKeyWithSettings(settings?: { aiProvider?: string | null; mistralApiKey?: string | null; manusForgeApiKey?: string | null; geminiApiKey?: string | null }): string {
   const provider = settings?.aiProvider || "mistral";
   if (provider === "mistral") {
     return settings?.mistralApiKey || ENV.mistralApiKey || "";
   }
+  if (provider === "gemini") {
+    return settings?.geminiApiKey || ENV.geminiApiKey || "";
+  }
   return settings?.manusForgeApiKey || ENV.forgeApiKey || "";
 }
 
+function getModelForProvider(provider: string): string {
+  if (provider === "mistral") return "mistral-large-latest";
+  if (provider === "gemini") return "gemini-2.0-flash";
+  // Manus Forge → Gemini 2.5 Flash via proxy
+  return "gemini-2.5-flash";
+}
+
 /**
  * Version de invokeLLM qui accepte les paramètres utilisateur depuis la DB
- * pour choisir dynamiquement le moteur IA (Mistral ou Manus).
+ * pour choisir dynamiquement le moteur IA (Mistral, Manus ou Gemini).
  */
 export async function invokeLLMWithUserSettings(
   params: InvokeParams,
-  userSettings?: { aiProvider?: string | null; mistralApiKey?: string | null; manusForgeApiKey?: string | null; manusForgeApiUrl?: string | null }
+  userSettings?: { aiProvider?: string | null; mistralApiKey?: string | null; manusForgeApiKey?: string | null; manusForgeApiUrl?: string | null; geminiApiKey?: string | null }
 ): Promise<InvokeResult> {
   const apiKey = getApiKeyWithSettings(userSettings);
   if (!apiKey || apiKey.trim().length === 0) {
@@ -328,7 +342,7 @@ export async function invokeLLMWithUserSettings(
     response_format,
   } = params;
 
-  const model = isMistral ? "mistral-large-latest" : "gemini-2.5-flash";
+  const model = getModelForProvider(provider);
 
   const payload: Record<string, unknown> = {
     model,
@@ -342,7 +356,8 @@ export async function invokeLLMWithUserSettings(
 
   payload.max_tokens = 32768;
 
-  if (!isMistral) {
+  // thinking uniquement pour Manus Forge (proxy Gemini)
+  if (provider === "manus") {
     payload.thinking = { budget_tokens: 128 };
   }
 

server/emailImportService.ts

@@ -92,6 +92,7 @@ async function processEmailAttachment(
       mistralApiKey: settings.mistralApiKey,
       manusForgeApiKey: settings.manusForgeApiKey,
       manusForgeApiUrl: settings.manusForgeApiUrl,
+      geminiApiKey: (settings as any).geminiApiKey || null,
     } : undefined;
     
     // Extract invoices

server/routers.ts

@@ -218,6 +218,7 @@ export const appRouter = router({
               mistralApiKey: (settings as any).mistralApiKey || null,
               manusForgeApiKey: (settings as any).manusForgeApiKey || null,
               manusForgeApiUrl: (settings as any).manusForgeApiUrl || null,
+              geminiApiKey: (settings as any).geminiApiKey || null,
             } : undefined;
             
             // Extract invoices
@@ -1171,10 +1172,11 @@ export const appRouter = router({
         sftpAutoExport: z.number().optional(),
         llmLogsRetentionMonths: z.number().optional(),
         learningConfidenceThreshold: z.number().min(1).optional(),
-        aiProvider: z.enum(["mistral", "manus"]).optional(),
+        aiProvider: z.enum(["mistral", "manus", "gemini"]).optional(),
         mistralApiKey: z.string().optional(),
         manusForgeApiKey: z.string().optional(),
         manusForgeApiUrl: z.string().optional(),
+        geminiApiKey: z.string().optional(),
       }))
       .mutation(async ({ input, ctx }) => {
         await upsertUserSettings({