chore(restructure): reorganize project layout

- Reorganize internal packages and overall project structure
- Update imports and wiring to match the new layout
- Separate HTTP parsing and streaming from the server package
- Separate middleware from the server package
- Separate session registry from the session package
- Move HTTP, HTTPS, and TCP servers to the transport package
- Session package no longer starts the TCP server directly
- Server package no longer starts HTTP/HTTPS servers on initialization
- Forwarder no longer handles accepting TCP requests
- Move session details to the types package
- HTTP/HTTPS initialization is now the responsibility of main

internal/grpc/client/client.go

@@ -8,10 +8,9 @@ import (
 	"log"
 	"time"
 	"tunnel_pls/internal/config"
+	"tunnel_pls/internal/registry"
 	"tunnel_pls/types"
 
-	"tunnel_pls/session"
-
 	proto "git.fossy.my.id/bagas/tunnel-please-grpc/gen"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
@@ -32,13 +31,13 @@ type Client interface {
 type client struct {
 	conn                       *grpc.ClientConn
 	address                    string
-	sessionRegistry            session.Registry
+	sessionRegistry            registry.Registry
 	eventService               proto.EventServiceClient
 	authorizeConnectionService proto.UserServiceClient
 	closing                    bool
 }
 
-func New(address string, sessionRegistry session.Registry) (Client, error) {
+func New(address string, sessionRegistry registry.Registry) (Client, error) {
 	var opts []grpc.DialOption
 
 	opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials()))