maven: fix test mocks for CalendarEvents interface (verification)

- Add CalendarEvents method to recordingAPI in auth_test.go
- Add CalendarEvents method to fakeCore in handlers_test.go

Co-Authored-By: opencode <opencode@anthropic.com>

cmd/mavend/voice.go

@@ -50,17 +50,17 @@ import (
 	"log"
 	"os"
 	"path/filepath"
-	"strings"
 	"strconv"
+	"strings"
 	"sync"
 	"time"
 
 	"github.com/kami/maven/internal/audio"
-	"github.com/kami/maven/internal/memory"
 	"github.com/kami/maven/internal/config"
 	"github.com/kami/maven/internal/delivery"
 	"github.com/kami/maven/internal/delivery/voicesink"
 	"github.com/kami/maven/internal/ipc"
+	"github.com/kami/maven/internal/memory"
 	"github.com/kami/maven/internal/phraser"
 	"github.com/kami/maven/internal/router"
 	"github.com/kami/maven/internal/stt"
@@ -207,18 +207,18 @@ func wireVoice(cfg *config.Config, coreAPI ipc.CoreAPI, phr phraser.Phraser) (*v
 
 	// ----- the handler (the reactive path; closes over stt / tts / router / coreAPI / memory) -----
 	h := &reactiveHandler{
-		stt:              transcriber,
-		tts:              synthesizer,
-		router:           rtr,
-		embedder:         emb,
-		api:              coreAPI,
-		tools:            exec,
-		phraser:          phr,
-		replier:          voice.NewStubReplier(),
-		now:              time.Now,
-		weatherProvider:  weatherProvider,
-		weatherLocation:  weatherLocation,
-		memStore:         memStore,
+		stt:             transcriber,
+		tts:             synthesizer,
+		router:          rtr,
+		embedder:        emb,
+		api:             coreAPI,
+		tools:           exec,
+		phraser:         phr,
+		replier:         voice.NewStubReplier(),
+		now:             time.Now,
+		weatherProvider: weatherProvider,
+		weatherLocation: weatherLocation,
+		memStore:        memStore,
 	}
 
 	// ----- the server (TCP listener) -----
@@ -968,4 +968,4 @@ func jsonStringImpl(s string) string {
 	}
 	b = append(b, '"')
 	return string(b)
-}
+}