fix: SPA routing and prompts table handling

- Add clean URL routing: /dashboard -> dashboard.html, /settings -> settings.html
- Add EnsurePromptsTable for dev environments where prompts table may not exist
- Fix nav links to use clean URLs instead of .html paths

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

.env

@@ -0,0 +1,18 @@
+# 服务配置
+SERVER_PORT=8080
+SESSION_SECRET=your-random-secret-key
+
+# 数据库（连接已有的远程 MySQL 实例）
+DB_HOST=your-mysql-public-ip
+DB_PORT=3306
+DB_USER=your-db-user
+DB_PASSWORD=your-db-password
+DB_NAME=prompt_generator
+
+# 认证
+AUTH_PASSWORD=your-access-password
+
+# LLM
+LLM_API_BASE_URL=https://api.deepseek.com/v1
+LLM_API_KEY=sk-xxx
+LLM_MODEL_NAME=deepseek-chat

frontend/static/common.js

@@ -176,8 +176,8 @@ Theme.init();
 function renderNavbar(activePage) {
     const pages = [
         { id: 'builder', label: '构建器', href: '/' },
-        { id: 'dashboard', label: '复盘看板', href: '/dashboard.html' },
-        { id: 'settings', label: '设置', href: '/settings.html' },
+        { id: 'dashboard', label: '复盘看板', href: '/dashboard' },
+        { id: 'settings', label: '设置', href: '/settings' },
     ];
 
     const nav = document.createElement('nav');

internal/db/db.go

@@ -109,6 +109,24 @@ func AutoMigrate() error {
 	return nil
 }
 
+// EnsurePromptsTable creates the prompts table if it doesn't exist (for dev environments)
+func EnsurePromptsTable() {
+	_, err := DB.Exec(`CREATE TABLE IF NOT EXISTS prompts (
+		id bigint NOT NULL AUTO_INCREMENT,
+		session_id varchar(128) NOT NULL,
+		project_name varchar(255) NOT NULL DEFAULT '',
+		prompt text NOT NULL,
+		created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+		PRIMARY KEY (id),
+		KEY idx_session_id (session_id),
+		KEY idx_project_name (project_name),
+		KEY idx_created_at (created_at)
+	) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`)
+	if err != nil {
+		log.Printf("Warning: failed to ensure prompts table: %v", err)
+	}
+}
+
 func SeedData() error {
 	// Check if system tags already exist
 	var count int

main.go

@@ -38,12 +38,28 @@ func main() {
 	// Initialize handlers
 	handlers.Init(cfg)
 
+	// Ensure prompts table exists for dev environments
+	db.EnsurePromptsTable()
+
 	// Setup routes
 	mux := http.NewServeMux()
 
-	// Static files (frontend)
-	fs := http.FileServer(http.Dir("frontend"))
-	mux.Handle("/", fs)
+	// Static files with SPA-style routing for HTML pages
+	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		path := r.URL.Path
+		// Map clean URLs to .html files
+		switch path {
+		case "/dashboard":
+			http.ServeFile(w, r, "frontend/dashboard.html")
+			return
+		case "/settings":
+			http.ServeFile(w, r, "frontend/settings.html")
+			return
+		}
+		// Default file server
+		fs := http.FileServer(http.Dir("frontend"))
+		fs.ServeHTTP(w, r)
+	})
 
 	// Auth routes (no auth required)
 	mux.HandleFunc("POST /api/auth/login", handlers.Login)