feat: init sproutclaw-web — Go+Gin backend + React frontend

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/internal/handlers/models.go

@@ -0,0 +1,77 @@
+package handlers
+
+import (
+	"encoding/json"
+	"net/http"
+	"os"
+
+	"github.com/gin-gonic/gin"
+	"sproutclaw-web/internal/config"
+	"sproutclaw-web/internal/models"
+	"sproutclaw-web/internal/rpc"
+)
+
+// RegisterModels registers model-related routes.
+func RegisterModels(r *gin.RouterGroup, cfg *config.Config, piClient *rpc.Client) {
+	r.GET("/models", handleGetModels(cfg, piClient))
+	r.POST("/model", handleSetModel(piClient))
+	r.POST("/thinking", handleSetThinking(piClient))
+}
+
+func handleGetModels(cfg *config.Config, piClient *rpc.Client) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		resp, err := piClient.SendCmd(models.RPCCommand{Type: "list_models"})
+		if err != nil {
+			// fallback: read models.json
+			data, ferr := os.ReadFile(cfg.ModelsConfigFile)
+			if ferr != nil {
+				c.JSON(http.StatusOK, models.ModelsResponse{Models: []models.ModelEntry{}})
+				return
+			}
+			var raw any
+			_ = json.Unmarshal(data, &raw)
+			c.JSON(http.StatusOK, raw)
+			return
+		}
+		c.JSON(http.StatusOK, jsonRaw(resp.Result))
+	}
+}
+
+func handleSetModel(piClient *rpc.Client) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req models.SetModelRequest
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, models.ErrorResponse{Error: err.Error()})
+			return
+		}
+		resp, err := piClient.SendCmd(models.RPCCommand{
+			Type:     "set_model",
+			Provider: req.Provider,
+			ModelID:  req.ModelID,
+		})
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, models.ErrorResponse{Error: err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, jsonRaw(resp.Result))
+	}
+}
+
+func handleSetThinking(piClient *rpc.Client) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req models.SetThinkingRequest
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, models.ErrorResponse{Error: err.Error()})
+			return
+		}
+		resp, err := piClient.SendCmd(models.RPCCommand{
+			Type:   "set_thinking",
+			Budget: req.Budget,
+		})
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, models.ErrorResponse{Error: err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, jsonRaw(resp.Result))
+	}
+}