refactor(structure): group platform, infra, and shared packages

Reorganize internal packages into platform/infra/shared layers and update
imports, docs, and seed-count tests to match current system configs.

internal/apps/openflare/flared/logics.go

@@ -11,7 +11,7 @@ import (
 	"time"
 
 	"github.com/Rain-kl/Wavelet/internal/apps/openflare/agent"
-	"github.com/Rain-kl/Wavelet/internal/db"
+	db "github.com/Rain-kl/Wavelet/internal/infra/persistence"
 	"github.com/Rain-kl/Wavelet/internal/model"
 	"gorm.io/gorm"
 )

internal/apps/openflare/flared/middleware.go

@@ -8,8 +8,8 @@ import (
 	"errors"
 	"strings"
 
-	"github.com/Rain-kl/Wavelet/internal/common/response"
 	"github.com/Rain-kl/Wavelet/internal/model"
+	"github.com/Rain-kl/Wavelet/internal/shared/response"
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
 )

internal/apps/openflare/flared/middleware_test.go

@@ -9,9 +9,9 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/Rain-kl/Wavelet/internal/common/response"
-	"github.com/Rain-kl/Wavelet/internal/db"
+	db "github.com/Rain-kl/Wavelet/internal/infra/persistence"
 	"github.com/Rain-kl/Wavelet/internal/model"
+	"github.com/Rain-kl/Wavelet/internal/shared/response"
 	"github.com/gin-gonic/gin"
 	"github.com/glebarez/sqlite"
 	"github.com/stretchr/testify/assert"

internal/apps/openflare/flared/observability.go

@@ -10,7 +10,7 @@ import (
 	"time"
 
 	"github.com/Rain-kl/Wavelet/internal/apps/openflare/agent"
-	"github.com/Rain-kl/Wavelet/internal/db"
+	db "github.com/Rain-kl/Wavelet/internal/infra/persistence"
 	"go.uber.org/zap"
 )
 

internal/apps/openflare/flared/observability_test.go

@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"github.com/Rain-kl/Wavelet/internal/apps/openflare/agent"
-	"github.com/Rain-kl/Wavelet/internal/db"
+	db "github.com/Rain-kl/Wavelet/internal/infra/persistence"
 	"github.com/Rain-kl/Wavelet/internal/model"
 	"github.com/glebarez/sqlite"
 	"github.com/stretchr/testify/assert"

internal/apps/openflare/flared/routers.go

@@ -8,8 +8,8 @@ import (
 
 	"github.com/Rain-kl/Wavelet/internal/apps/openflare/apiutil"
 	ofws "github.com/Rain-kl/Wavelet/internal/apps/openflare/websocket"
-	"github.com/Rain-kl/Wavelet/internal/common/response"
 	"github.com/Rain-kl/Wavelet/internal/model"
+	"github.com/Rain-kl/Wavelet/internal/shared/response"
 	"github.com/gin-gonic/gin"
 )