Implement friend APIs and target profile support

- Add friend search/list/request/requestCancel/response/expel handlers and schemas
- Store friend relationships in user_friend and backfill default friend links at startup
- Auto-add the default user as a friend for newly created accounts
- Support target user_id in /api profile requests and return target profile data
- Make profile accessory_info optional to avoid zero-value accessory payloads
- Update login topInfo friend counters from friend relationship state

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/startup/database.go

@@ -27,6 +27,7 @@ func CreateTables() {
 	db.UserEng.Sync2(new(usermodel.UserLiveGoal))
 	db.UserEng.Sync2(new(usermodel.UserLiveInProgress))
 	db.UserEng.Sync2(new(usermodel.UserLiveRecord))
+	db.UserEng.Sync2(new(usermodel.UserFriend))
 	db.UserEng.Sync2(new(usermodel.UserPref))
 	db.UserEng.Sync2(new(usermodel.Users))
 	db.UserEng.Sync2(new(usermodel.UserUnit))

internal/startup/defaultuser.go

@@ -2,16 +2,16 @@ package startup
 
 import (
 	"honoka-chan/internal/handler/ghome/account"
+	usermodel "honoka-chan/internal/model/user"
 	"log"
 )
 
 const (
-	defaultPhone    = "1"
 	defaultPassword = "klsbgames"
 )
 
 func CreateDefaultUser() {
-	_, code, msg, created, err := account.AddUser(defaultPhone, defaultPassword, true)
+	_, code, msg, created, err := account.AddUser(usermodel.DefaultSystemPhone, defaultPassword, true)
 	if err != nil {
 		log.Fatalln("默认用户创建失败:", err.Error())
 	}
@@ -19,7 +19,7 @@ func CreateDefaultUser() {
 		log.Fatalf("默认用户创建失败: code=%d msg=%s", code, msg)
 	}
 	if created {
-		log.Printf("默认用户创建成功, 账号: %s, 密码: %s\n", defaultPhone, defaultPassword)
+		log.Printf("默认用户创建成功, 账号: %s, 密码: %s\n", usermodel.DefaultSystemPhone, defaultPassword)
 		return
 	}
 }

internal/startup/friend.go

@@ -0,0 +1,38 @@
+package startup
+
+import (
+	usermodel "honoka-chan/internal/model/user"
+	"honoka-chan/pkg/db"
+	"log"
+)
+
+func EnsureDefaultFriends() {
+	session := db.UserEng.NewSession()
+	defer session.Close()
+
+	if err := session.Begin(); err != nil {
+		log.Fatalln("初始化默认好友失败:", err.Error())
+	}
+
+	userIDs := []int{}
+	err := session.Table(new(usermodel.Users)).
+		Cols("user_id").
+		Find(&userIDs)
+	if err != nil {
+		session.Rollback()
+		log.Fatalln("初始化默认好友失败:", err.Error())
+	}
+
+	for _, userID := range userIDs {
+		err = usermodel.EnsureDefaultFriendship(session, userID)
+		if err != nil {
+			session.Rollback()
+			log.Fatalln("初始化默认好友失败:", err.Error())
+		}
+	}
+
+	if err := session.Commit(); err != nil {
+		session.Rollback()
+		log.Fatalln("初始化默认好友失败:", err.Error())
+	}
+}

internal/startup/startup.go

@@ -4,4 +4,5 @@ func StartUp() {
 	CreateTables()
 	LoadUnitData()
 	CreateDefaultUser()
+	EnsureDefaultFriends()
 }