feat: Phase 1 — 项目骨架搭建，集成 Gin、SQLite 和设置页面

handlers/settings.go

@@ -0,0 +1,59 @@
+package handlers
+
+import (
+	"database/sql"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+type SettingsHandler struct {
+	db *sql.DB
+}
+
+func NewSettingsHandler(db *sql.DB) *SettingsHandler {
+	return &SettingsHandler{db: db}
+}
+
+func (h *SettingsHandler) GetSettings(c *gin.Context) {
+	settings := make(map[string]string)
+	rows, err := h.db.Query(`SELECT key, value FROM settings`)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var k, v string
+		if rows.Scan(&k, &v) == nil {
+			settings[k] = v
+		}
+	}
+	c.JSON(http.StatusOK, settings)
+}
+
+func (h *SettingsHandler) UpdateSettings(c *gin.Context) {
+	var body map[string]string
+	if err := c.ShouldBindJSON(&body); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid request body"})
+		return
+	}
+	tx, err := h.db.Begin()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	for key, val := range body {
+		_, err := tx.Exec(`INSERT OR REPLACE INTO settings (key, value) VALUES (?, ?)`, key, val)
+		if err != nil {
+			tx.Rollback()
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+	}
+	if err := tx.Commit(); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"ok": true})
+}