Improve auction house UI with search filters, pagination, sell picker, and tooltips

- Add item class/subclass category filters (Weapon, Armor, etc.) with correct WoW 3.3.5a IDs
- Add sell item picker dropdown with icons and Create Auction button
- Add pagination (Prev/Next) for browse results with filter preservation
- Add Buy/Bid action buttons to Bids tab
- Add item icons and stat tooltips on hover across all three tabs
- Add Enter-to-search from name field and search delay countdown
- Parse SMSG_AUCTION_OWNER/BIDDER_NOTIFICATION into chat messages
- Auto-refresh browse results after bid/buyout using saved search params
- Clamp level range inputs to 0-80

include/game/game_handler.hpp

@@ -355,6 +355,11 @@ public:
     void acceptGuildInvite();
     void declineGuildInvite();
     void queryGuildInfo(uint32_t guildId);
+    void createGuild(const std::string& guildName);
+    void addGuildRank(const std::string& rankName);
+    void deleteGuildRank();
+    void requestPetitionShowlist(uint64_t npcGuid);
+    void buyPetition(uint64_t npcGuid, const std::string& guildName);
 
     // Guild state accessors
     bool isInGuild() const {
@@ -369,6 +374,13 @@ public:
     bool hasPendingGuildInvite() const { return pendingGuildInvite_; }
     const std::string& getPendingGuildInviterName() const { return pendingGuildInviterName_; }
     const std::string& getPendingGuildInviteGuildName() const { return pendingGuildInviteGuildName_; }
+    const GuildInfoData& getGuildInfoData() const { return guildInfoData_; }
+    const GuildQueryResponseData& getGuildQueryData() const { return guildQueryData_; }
+    bool hasGuildInfoData() const { return guildInfoData_.isValid(); }
+    bool hasPetitionShowlist() const { return showPetitionDialog_; }
+    void clearPetitionDialog() { showPetitionDialog_ = false; }
+    uint32_t getPetitionCost() const { return petitionCost_; }
+    uint64_t getPetitionNpcGuid() const { return petitionNpcGuid_; }
 
     // Ready check
     void initiateReadyCheck();
@@ -1123,6 +1135,8 @@ private:
     void handleGuildEvent(network::Packet& packet);
     void handleGuildInvite(network::Packet& packet);
     void handleGuildCommandResult(network::Packet& packet);
+    void handlePetitionShowlist(network::Packet& packet);
+    void handleTurnInPetitionResults(network::Packet& packet);
 
     // ---- Character creation handler ----
     void handleCharCreateResponse(network::Packet& packet);
@@ -1467,10 +1481,15 @@ private:
     std::string guildName_;
     std::vector<std::string> guildRankNames_;
     GuildRosterData guildRoster_;
+    GuildInfoData guildInfoData_;
+    GuildQueryResponseData guildQueryData_;
     bool hasGuildRoster_ = false;
     bool pendingGuildInvite_ = false;
     std::string pendingGuildInviterName_;
     std::string pendingGuildInviteGuildName_;
+    bool showPetitionDialog_ = false;
+    uint32_t petitionCost_ = 0;
+    uint64_t petitionNpcGuid_ = 0;
 
     uint64_t activeCharacterGuid_ = 0;
     Race playerRace_ = Race::HUMAN;
@@ -1607,6 +1626,18 @@ private:
     AuctionListResult auctionBidderResults_;
     int auctionActiveTab_ = 0;  // 0=Browse, 1=Bids, 2=Auctions
     float auctionSearchDelayTimer_ = 0.0f;
+    // Last search params for re-query (pagination, auto-refresh after bid/buyout)
+    struct AuctionSearchParams {
+        std::string name;
+        uint8_t levelMin = 0, levelMax = 0;
+        uint32_t quality = 0xFFFFFFFF;
+        uint32_t itemClass = 0xFFFFFFFF;
+        uint32_t itemSubClass = 0xFFFFFFFF;
+        uint32_t invTypeMask = 0;
+        uint8_t usableOnly = 0;
+        uint32_t offset = 0;
+    };
+    AuctionSearchParams lastAuctionSearch_;
     // Routing: which result vector to populate from next SMSG_AUCTION_LIST_RESULT
     enum class AuctionResultTarget { BROWSE, OWNER, BIDDER };
     AuctionResultTarget pendingAuctionTarget_ = AuctionResultTarget::BROWSE;

include/game/world_packets.hpp

@@ -1050,6 +1050,60 @@ public:
     static network::Packet build();
 };
 
+/** CMSG_GUILD_CREATE packet builder */
+class GuildCreatePacket {
+public:
+    static network::Packet build(const std::string& guildName);
+};
+
+/** CMSG_GUILD_ADD_RANK packet builder */
+class GuildAddRankPacket {
+public:
+    static network::Packet build(const std::string& rankName);
+};
+
+/** CMSG_GUILD_DEL_RANK packet builder (empty body) */
+class GuildDelRankPacket {
+public:
+    static network::Packet build();
+};
+
+/** CMSG_PETITION_SHOWLIST packet builder */
+class PetitionShowlistPacket {
+public:
+    static network::Packet build(uint64_t npcGuid);
+};
+
+/** CMSG_PETITION_BUY packet builder */
+class PetitionBuyPacket {
+public:
+    static network::Packet build(uint64_t npcGuid, const std::string& guildName);
+};
+
+/** SMSG_PETITION_SHOWLIST data */
+struct PetitionShowlistData {
+    uint64_t npcGuid = 0;
+    uint32_t itemId = 0;
+    uint32_t displayId = 0;
+    uint32_t cost = 0;
+    uint32_t charterType = 0;
+    uint32_t requiredSigs = 0;
+
+    bool isValid() const { return npcGuid != 0; }
+};
+
+/** SMSG_PETITION_SHOWLIST parser */
+class PetitionShowlistParser {
+public:
+    static bool parse(network::Packet& packet, PetitionShowlistData& data);
+};
+
+/** SMSG_TURN_IN_PETITION_RESULTS parser */
+class TurnInPetitionResultsParser {
+public:
+    static bool parse(network::Packet& packet, uint32_t& result);
+};
+
 // Guild event type constants
 namespace GuildEvent {
     constexpr uint8_t PROMOTION      = 0;

include/ui/game_screen.hpp

@@ -68,6 +68,12 @@ private:
     bool showGuildNoteEdit_ = false;
     bool editingOfficerNote_ = false;
     char guildNoteEditBuffer_[256] = {0};
+    int guildRosterTab_ = 0;  // 0=Roster, 1=Guild Info
+    char guildMotdEditBuffer_[256] = {0};
+    bool showMotdEdit_ = false;
+    char petitionNameBuffer_[64] = {0};
+    char addRankNameBuffer_[64] = {0};
+    bool showAddRankModal_ = false;
     bool refocusChatInput = false;
     bool vendorBagsOpened_ = false;  // Track if bags were auto-opened for current vendor session
     bool chatWindowLocked = true;
@@ -284,6 +290,10 @@ private:
     int auctionSellBid_[3] = {0, 0, 0};     // gold, silver, copper
     int auctionSellBuyout_[3] = {0, 0, 0};  // gold, silver, copper
     int auctionSelectedItem_ = -1;
+    int auctionSellSlotIndex_ = -1;          // Selected backpack slot for selling
+    uint32_t auctionBrowseOffset_ = 0;       // Pagination offset for browse results
+    int auctionItemClass_ = -1;              // Item class filter (-1 = All)
+    int auctionItemSubClass_ = -1;           // Item subclass filter (-1 = All)
 
     // Guild bank money input
     int guildBankMoneyInput_[3] = {0, 0, 0};  // gold, silver, copper