ci: add Gitea Actions workflows and placeholder tests

internal/handler/interest.go

@@ -0,0 +1,58 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"os"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/jmoiron/sqlx"
+
+	"github.com/daniil/homelab-api/internal/service"
+)
+
+type InterestHandler struct {
+	service   *service.InterestService
+	secretKey string
+}
+
+func NewInterestHandler(db *sqlx.DB) *InterestHandler {
+	secretKey := os.Getenv("INTERNAL_API_KEY")
+	if secretKey == "" {
+		secretKey = "pulse-internal-2026"
+	}
+	return &InterestHandler{
+		service:   service.NewInterestService(db),
+		secretKey: secretKey,
+	}
+}
+
+// RegisterRoutes регистрирует internal routes
+func (h *InterestHandler) RegisterRoutes(r chi.Router) {
+	r.Post("/internal/calculate-interest", h.CalculateInterest)
+}
+
+// CalculateInterest запускает расчёт процентов для всех вкладов
+// POST /internal/calculate-interest
+// Header: X-Internal-Key: <secret>
+func (h *InterestHandler) CalculateInterest(w http.ResponseWriter, r *http.Request) {
+	// Verify internal API key
+	key := r.Header.Get("X-Internal-Key")
+	if key != h.secretKey {
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+	
+	results, err := h.service.CalculateAllDepositsInterest()
+	if err != nil {
+		w.Header().Set("Content-Type", "application/json")
+		json.NewEncoder(w).Encode(map[string]string{"error": err.Error()})
+		return
+	}
+	
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]interface{}{
+		"message": "Interest calculation completed",
+		"results": results,
+	})
+}