feat: Implement Svelte frontend with OTA update support, build tooling, and deployment documentation.

Provider/frontend/scripts/package.js

@@ -6,13 +6,13 @@
 import { execSync } from 'child_process';
 import { resolve, dirname } from 'path';
 import { fileURLToPath } from 'url';
-import { existsSync, readFileSync, mkdirSync } from 'fs';
+import { existsSync, readFileSync, mkdirSync, writeFileSync } from 'fs';
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 const projectRoot = resolve(__dirname, '..');
 const distDir = resolve(projectRoot, 'dist');
 const binDir = resolve(projectRoot, 'bin');
-const outputFile = resolve(binDir, 'www.bin');
+const versionFile = resolve(projectRoot, 'version.json');
 
 // Ensure bin directory exists
 if (!existsSync(binDir)) {
@@ -26,6 +26,33 @@ const PAGE_SIZE = 256;
 
 console.log('--- OTA Packaging ---');
 
+/**
+ * Handle versioning: Read current version
+ */
+function getVersion() {
+    if (existsSync(versionFile)) {
+        try {
+            return JSON.parse(readFileSync(versionFile, 'utf8'));
+        } catch (e) {
+            console.warn('Warning: Could not read version.json:', e.message);
+        }
+    }
+    return { major: 0, minor: 0, revision: 0 };
+}
+
+/**
+ * Increment and save revision
+ */
+function incrementVersion(version) {
+    try {
+        version.revision = (version.revision || 0) + 1;
+        writeFileSync(versionFile, JSON.stringify(version, null, 2));
+        console.log(`Version incremented to: ${version.major}.${version.minor}.${version.revision} for next build.`);
+    } catch (e) {
+        console.warn('Warning: Could not update version.json:', e.message);
+    }
+}
+
 /**
  * Simple .env parser to load MKLITTLEFS_PATH without external dependencies
  */
@@ -51,6 +78,9 @@ function loadEnv() {
 }
 
 loadEnv();
+const version = getVersion();
+const versionStr = `${version.major}.${version.minor}.${version.revision}`;
+const outputFile = resolve(binDir, `www_v${versionStr}.bin`);
 
 if (!existsSync(distDir)) {
     console.error('Error: dist/ directory not found. Run "npm run build:esp32" first.');
@@ -107,6 +137,9 @@ try {
     console.log(`Running: ${cmd}`);
     execSync(cmd, { stdio: 'inherit' });
     console.log('Success: www.bin created.');
+    
+    // Auto-increment for the next build
+    incrementVersion(version);
 } catch (e) {
     console.error('Error during packaging:', e.message);
     process.exit(1);