feat: add model groups CRUD admin API endpoints

internal/server/model_groups_admin.go

@@ -0,0 +1,76 @@
+package server
+
+import (
+	"net/http"
+
+	"gophergate/internal/db"
+
+	"github.com/gin-gonic/gin"
+)
+
+func (s *Server) handleGetModelGroups(c *gin.Context) {
+	var groups []db.ModelGroup
+	if err := s.database.Select(&groups, "SELECT * FROM model_groups ORDER BY id"); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	if groups == nil {
+		groups = []db.ModelGroup{}
+	}
+	c.JSON(http.StatusOK, groups)
+}
+
+func (s *Server) handleCreateModelGroup(c *gin.Context) {
+	var group db.ModelGroup
+	if err := c.ShouldBindJSON(&group); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	_, err := s.database.Exec(`
+		INSERT INTO model_groups (id, strategy, selector_model, targets, complexity_threshold, heuristic_rules)
+		VALUES (?, ?, ?, ?, ?, ?)`,
+		group.ID, group.Strategy, group.SelectorModel, group.Targets,
+		group.ComplexityThreshold, group.HeuristicRules)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	s.refreshRouter()
+	c.JSON(http.StatusCreated, group)
+}
+
+func (s *Server) handleUpdateModelGroup(c *gin.Context) {
+	id := c.Param("id")
+	var group db.ModelGroup
+	if err := c.ShouldBindJSON(&group); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	_, err := s.database.Exec(`
+		UPDATE model_groups SET strategy=?, selector_model=?, targets=?, complexity_threshold=?, heuristic_rules=?, updated_at=CURRENT_TIMESTAMP
+		WHERE id=?`,
+		group.Strategy, group.SelectorModel, group.Targets,
+		group.ComplexityThreshold, group.HeuristicRules, id)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	s.refreshRouter()
+	c.JSON(http.StatusOK, group)
+}
+
+func (s *Server) handleDeleteModelGroup(c *gin.Context) {
+	id := c.Param("id")
+	_, err := s.database.Exec("DELETE FROM model_groups WHERE id=?", id)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	s.refreshRouter()
+	c.JSON(http.StatusOK, gin.H{"status": "deleted"})
+}