Add hybrid versioning scripts, version shown in app footer

src/constants/defaults.ts

@@ -8,8 +8,28 @@
  * @license MIT
  */
 
+import packageJson from '../../package.json';
+// Direct import of version.json - Vite handles this natively with import assertions
+// This file is generated by prebuild script with git info
+// @ts-ignore
+import versionJsonDefault from '../version.json' assert { type: 'json' };
+
+// Use the imported version.json, or fall back to -dev version
+const versionInfo = versionJsonDefault && Object.keys(versionJsonDefault).length > 0 && versionJsonDefault.version && !versionJsonDefault.version.includes('unknown')
+  ? versionJsonDefault
+  : {
+      version: `${packageJson.version}-dev`,
+      semver: packageJson.version,
+      commit: 'unknown',
+      branch: 'unknown',
+      buildDate: new Date().toISOString(),
+      gitDate: 'unknown',
+    };
+
 export const LOCAL_STORAGE_KEY = 'medPlanAssistantState_v7';
 export const PROJECT_REPOSITORY_URL = 'https://git.11001001.org/cbaoth/med-plan-assistant';
+export const APP_VERSION = versionInfo.version;
+export const BUILD_INFO = versionInfo;
 
 // Pharmacokinetic Constants (from research literature)
 // MW ratio: 135.21 (d-amphetamine) / 455.60 (LDX dimesylate) = 0.29677