Refactor bot startup process to auto-create configuration files, enhance update system, and add historical stats endpoints

- Updated README.md to reflect new bot setup and configuration process.
- Removed outdated installer README and integrated update logic directly into the bot.
- Implemented smart update for example configuration files, ensuring user files are not overwritten.
- Added FileBootstrap class to handle automatic creation of configuration files on first run.
- Enhanced BotController to manage stop requests and ensure graceful shutdown.
- Introduced new stats management features, including historical stats and activity breakdown endpoints.
- Updated API routes to include new statistics retrieval functionalities.

src/util/core/FileBootstrap.ts

@@ -0,0 +1,116 @@
+import fs from 'fs'
+import path from 'path'
+
+/**
+ * Bootstrap configuration files on startup
+ * Automatically copies .example.jsonc files to .jsonc if they don't exist
+ * 
+ * This ensures first-time users have working config/accounts files
+ * without manual renaming steps
+ */
+export class FileBootstrap {
+    private static readonly FILES_TO_BOOTSTRAP = [
+        {
+            example: 'src/config.example.jsonc',
+            target: 'src/config.jsonc',
+            name: 'Configuration'
+        },
+        {
+            example: 'src/accounts.example.jsonc',
+            target: 'src/accounts.jsonc',
+            name: 'Accounts'
+        }
+    ]
+
+    /**
+     * Bootstrap all necessary files
+     * @returns Array of files that were created
+     */
+    public static bootstrap(): string[] {
+        const created: string[] = []
+
+        for (const file of this.FILES_TO_BOOTSTRAP) {
+            if (this.bootstrapFile(file.example, file.target, file.name)) {
+                created.push(file.name)
+            }
+        }
+
+        return created
+    }
+
+    /**
+     * Bootstrap a single file
+     * @returns true if file was created, false if it already existed
+     */
+    private static bootstrapFile(examplePath: string, targetPath: string, name: string): boolean {
+        const rootDir = process.cwd()
+        const exampleFullPath = path.join(rootDir, examplePath)
+        const targetFullPath = path.join(rootDir, targetPath)
+
+        // Check if target already exists
+        if (fs.existsSync(targetFullPath)) {
+            return false
+        }
+
+        // Check if example exists
+        if (!fs.existsSync(exampleFullPath)) {
+            console.warn(`⚠️  Example file not found: ${examplePath}`)
+            return false
+        }
+
+        try {
+            // Copy example to target
+            fs.copyFileSync(exampleFullPath, targetFullPath)
+            console.log(`✅ Created ${name} file: ${targetPath}`)
+            return true
+        } catch (error) {
+            console.error(`❌ Failed to create ${name} file:`, error instanceof Error ? error.message : String(error))
+            return false
+        }
+    }
+
+    /**
+     * Check if all required files exist
+     * @returns true if all files exist
+     */
+    public static checkFiles(): { allExist: boolean; missing: string[] } {
+        const missing: string[] = []
+        const rootDir = process.cwd()
+
+        for (const file of this.FILES_TO_BOOTSTRAP) {
+            const targetFullPath = path.join(rootDir, file.target)
+            if (!fs.existsSync(targetFullPath)) {
+                missing.push(file.name)
+            }
+        }
+
+        return {
+            allExist: missing.length === 0,
+            missing
+        }
+    }
+
+    /**
+     * Display startup message if files were bootstrapped
+     */
+    public static displayStartupMessage(createdFiles: string[]): void {
+        if (createdFiles.length === 0) {
+            return
+        }
+
+        console.log('\n' + '='.repeat(70))
+        console.log('🎉  FIRST-TIME SETUP COMPLETE')
+        console.log('='.repeat(70))
+        console.log('\nThe following files have been created for you:')
+
+        for (const fileName of createdFiles) {
+            console.log(`  ✓ ${fileName}`)
+        }
+
+        console.log('\n📝  NEXT STEPS:')
+        console.log('  1. Edit src/accounts.jsonc to add your Microsoft accounts')
+        console.log('  2. (Optional) Customize src/config.jsonc settings')
+        console.log('  3. Run the bot again with: npm start')
+        console.log('\n' + '='.repeat(70) + '\n')
+    }
+}