feat: versionamento visível (rodapé + /api/version + carimbo no build)

- backend: endpoint GET /api/version + linha [VERSION] no boot (le APP_VERSION/GIT_COMMIT/BUILD_TIME/APP_ENV)
- frontend: buildInfo.ts le import.meta.env.VITE_* ; versão no rodapé do Sidebar
- Dockerfiles (front+back): ARG/ENV do carimbo de versão
- docker-compose.yml: build args (APP_VERSION/GIT_COMMIT/BUILD_TIME/APP_ENV) com defaults
- bump V1.0.12 -> V1.0.13

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/Dockerfile

@@ -4,6 +4,13 @@ WORKDIR /app/frontend
 COPY frontend/package*.json .
 RUN npm install
 COPY frontend/ .
+# Carimbo de versão visível (lido por buildInfo.ts via import.meta.env.VITE_*)
+ARG GIT_COMMIT=dev
+ARG BUILD_TIME=
+ARG APP_ENV=DEV
+ENV VITE_GIT_COMMIT=$GIT_COMMIT
+ENV VITE_BUILD_TIME=$BUILD_TIME
+ENV VITE_APP_ENV=$APP_ENV
 RUN npm run build
 
 # Stage 2: Serve

frontend/buildInfo.ts

@@ -0,0 +1,17 @@
+import { APP_VERSION } from './constants.ts';
+
+// Metadados de build. commit/build/ambiente são carimbados no build via
+// variáveis VITE_* (ARGs do Dockerfile do frontend). Em dev sem build args,
+// caem nos defaults abaixo.
+const meta = (import.meta as any).env || {};
+
+export const BUILD_INFO = {
+  name: 'ScoreOdonto',
+  version: APP_VERSION,
+  commit: meta.VITE_GIT_COMMIT || 'dev',
+  build: meta.VITE_BUILD_TIME || '',
+  environment: String(meta.VITE_APP_ENV || 'DEV').toUpperCase(),
+};
+
+// Rótulo curto: "V1.0.13 · 7a9b3c1 · DEV"
+export const versionLabel = `${BUILD_INFO.version} · ${BUILD_INFO.commit} · ${BUILD_INFO.environment}`;

frontend/components/Sidebar.tsx

@@ -7,6 +7,7 @@ import {
 import { ToothIcon } from './ToothIcon.tsx';
 import { HybridBackend } from '../services/backend.ts';
 import { getActivePlugins } from '../views/plugins/pluginRegistry.ts';
+import { BUILD_INFO } from '../buildInfo.ts';
 
 interface SidebarProps {
   activeTab: string;
@@ -283,6 +284,15 @@ export const Sidebar: React.FC<SidebarProps> = ({ activeTab, setActiveTab }) =>
           <LogOut size={16} />
           SAIR DO SISTEMA
         </button>
+
+        <div
+          className="px-4 pt-1 text-[8px] leading-tight text-gray-300 font-mono select-text"
+          title={`Build: ${BUILD_INFO.build || 'n/a'}`}
+        >
+          <span className="font-bold text-gray-400">{BUILD_INFO.version}</span>
+          {' · '}{BUILD_INFO.commit}
+          {' · '}<span className={BUILD_INFO.environment === 'PRODUÇÃO' || BUILD_INFO.environment === 'PROD' ? 'text-emerald-400' : 'text-amber-400'}>{BUILD_INFO.environment}</span>
+        </div>
       </div>
     </div>
   );

frontend/constants.ts

@@ -1 +1 @@
-export const APP_VERSION = 'V1.0.12';
+export const APP_VERSION = 'V1.0.13';