refactor(channelserver): split repo_guild.go into domain-focused files

The 1004-line monolith covered 11 game subsystems across 62 methods.
Split into 7 files by domain (RP, posts, alliances, adventures, hunts,
cooking) while keeping core CRUD/membership/scouts in the original.
Same package, receiver, and interface — no behavior changes.

server/channelserver/repo_guild_adventure.go

@@ -0,0 +1,69 @@
+package channelserver
+
+import (
+	"context"
+
+	"erupe-ce/common/stringsupport"
+)
+
+// ListAdventures returns all adventures for a guild.
+func (r *GuildRepository) ListAdventures(guildID uint32) ([]*GuildAdventure, error) {
+	rows, err := r.db.Queryx(
+		"SELECT id, destination, charge, depart, return, collected_by FROM guild_adventures WHERE guild_id = $1", guildID)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+	var adventures []*GuildAdventure
+	for rows.Next() {
+		adv := &GuildAdventure{}
+		if err := rows.StructScan(adv); err != nil {
+			continue
+		}
+		adventures = append(adventures, adv)
+	}
+	return adventures, nil
+}
+
+// CreateAdventure inserts a new guild adventure.
+func (r *GuildRepository) CreateAdventure(guildID, destination uint32, depart, returnTime int64) error {
+	_, err := r.db.Exec(
+		"INSERT INTO guild_adventures (guild_id, destination, depart, return) VALUES ($1, $2, $3, $4)",
+		guildID, destination, depart, returnTime)
+	return err
+}
+
+// CreateAdventureWithCharge inserts a new guild adventure with an initial charge (Diva variant).
+func (r *GuildRepository) CreateAdventureWithCharge(guildID, destination, charge uint32, depart, returnTime int64) error {
+	_, err := r.db.Exec(
+		"INSERT INTO guild_adventures (guild_id, destination, charge, depart, return) VALUES ($1, $2, $3, $4, $5)",
+		guildID, destination, charge, depart, returnTime)
+	return err
+}
+
+// CollectAdventure marks an adventure as collected by the given character (CSV append).
+// Uses SELECT FOR UPDATE to prevent concurrent double-collect.
+func (r *GuildRepository) CollectAdventure(adventureID uint32, charID uint32) error {
+	tx, err := r.db.BeginTxx(context.Background(), nil)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	var collectedBy string
+	err = tx.QueryRow("SELECT collected_by FROM guild_adventures WHERE id = $1 FOR UPDATE", adventureID).Scan(&collectedBy)
+	if err != nil {
+		return err
+	}
+	collectedBy = stringsupport.CSVAdd(collectedBy, int(charID))
+	if _, err = tx.Exec("UPDATE guild_adventures SET collected_by = $1 WHERE id = $2", collectedBy, adventureID); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
+// ChargeAdventure adds charge to a guild adventure.
+func (r *GuildRepository) ChargeAdventure(adventureID uint32, amount uint32) error {
+	_, err := r.db.Exec("UPDATE guild_adventures SET charge = charge + $1 WHERE id = $2", amount, adventureID)
+	return err
+}