Auto-inject commit SHA during Vite build from git (#74)

* feat: auto-set VITE_COMMIT_SHA from git during build

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Co-authored-by: wuhan005 <12731778+wuhan005@users.noreply.github.com>

* fix: handle TypeScript error type in catch block

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---------

Co-authored-by: anthropic-code-agent[bot] <242468646+Claude@users.noreply.github.com>
Co-authored-by: wuhan005 <12731778+wuhan005@users.noreply.github.com>

Author: Claude

web/vite.config.ts

@@ -1,6 +1,17 @@
 import {resolve} from 'path'
 import {defineConfig} from 'vite'
 import vue from '@vitejs/plugin-vue'
+import {execSync} from 'child_process'
+
+// Get commit SHA at build time
+function getCommitSHA() {
+    try {
+        return execSync('git rev-parse HEAD', {encoding: 'utf-8'}).trim()
+    } catch (error) {
+        console.warn('Warning: Could not get git commit SHA:', error instanceof Error ? error.message : String(error))
+        return process.env.VITE_COMMIT_SHA || ''
+    }
+}
 
 // https://vite.dev/config/
 export default defineConfig({
@@ -14,6 +25,11 @@ export default defineConfig({
         },
     },
 
+    // Define environment variables at build time
+    define: {
+        'import.meta.env.VITE_COMMIT_SHA': JSON.stringify(process.env.VITE_COMMIT_SHA || getCommitSHA()),
+    },
+
     server: {
         port: 3000,
         host: '0.0.0.0',