refactor(chat): extract ItemTooltipRenderer, slim render(), consolidate utils

- Extract renderItemTooltip() (510 LOC) from ChatMarkupRenderer into
  dedicated ItemTooltipRenderer class; chat_markup_renderer.cpp 766→192 LOC
- Extract formatChatMessage(), detectChannelPrefix(), inputTextCallback()
  from render(); render() 711→376 LOC
- Consolidate replaceGenderPlaceholders() from 3 copies into
  chat_utils::replaceGenderPlaceholders(); remove 118 LOC duplicate from
  quest_log_screen.cpp, update 8 call sites in window_manager.cpp
- Delete chat_panel_commands.cpp (359 LOC) — absorb sendChatMessage,
  executeMacroText, PortBot helpers into chat_panel.cpp; move
  evaluateMacroConditionals to macro_eval_convenience.cpp
- Delete chat_panel_utils.cpp (229 LOC) — absorb small utilities into
  chat_panel.cpp
- Replace 3 forward declarations of evaluateMacroConditionals with
  #include "ui/chat/macro_evaluator.hpp"

Signed-off-by: Pavel Okhlopkov <pavel.okhlopkov@flant.com>

include/ui/chat/chat_markup_renderer.hpp

@@ -47,15 +47,6 @@ public:
     void render(const std::vector<ChatSegment>& segments,
                 const ImVec4& baseColor,
                 const MarkupRenderContext& ctx) const;
-
-    /**
-     * Render a full item tooltip for the given item entry.
-     * Extracted from the renderItemLinkTooltip inline lambda.
-     */
-    static void renderItemTooltip(uint32_t itemEntry,
-                                  game::GameHandler& gameHandler,
-                                  InventoryScreen& inventoryScreen,
-                                  pipeline::AssetManager* assetMgr);
 };
 
 } // namespace ui

include/ui/chat/chat_utils.hpp

@@ -1,14 +1,18 @@
 #pragma once
 
 #include "game/world_packets.hpp"
+#include "game/entity.hpp"
 #include <algorithm>
 #include <cctype>
+#include <memory>
 #include <string>
 
 namespace wowee {
 
-// Forward declaration
-namespace game { class GameHandler; }
+// Forward declarations
+namespace game {
+    class GameHandler;
+}
 
 namespace ui {
 namespace chat_utils {
@@ -38,6 +42,17 @@ inline std::string toLower(std::string s) {
     return s;
 }
 
+/**
+ * Replace $g/$G gender, $n/$N name, $c/$C class, $r/$R race,
+ * $p/$o/$s/$S pronoun, $b/$B linebreak, and |n linebreak placeholders.
+ * Extracted from ChatPanel::replaceGenderPlaceholders (Phase 6.6).
+ */
+std::string replaceGenderPlaceholders(const std::string& text,
+                                       game::GameHandler& gameHandler);
+
+/** Get display name for any entity (Player/Unit/GameObject). */
+std::string getEntityDisplayName(const std::shared_ptr<game::Entity>& entity);
+
 } // namespace chat_utils
 } // namespace ui
 } // namespace wowee

include/ui/chat/item_tooltip_renderer.hpp

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <cstdint>
+
+namespace wowee {
+namespace game { class GameHandler; }
+namespace pipeline { class AssetManager; }
+namespace ui {
+
+class InventoryScreen;
+
+/**
+ * Renders a full WoW-style item tooltip via ImGui.
+ *
+ * Extracted from ChatMarkupRenderer::renderItemTooltip (Phase 6.7).
+ * Handles: item name/quality color, armor/DPS, stats, sockets, set bonuses,
+ * durability, sell price, required level, comparison tooltip.
+ */
+class ItemTooltipRenderer {
+public:
+    static void render(uint32_t itemEntry,
+                       game::GameHandler& gameHandler,
+                       InventoryScreen& inventoryScreen,
+                       pipeline::AssetManager* assetMgr);
+};
+
+} // namespace ui
+} // namespace wowee

include/ui/chat/macro_evaluator.hpp

@@ -7,6 +7,7 @@
 #include <string>
 
 namespace wowee {
+namespace game { class GameHandler; }
 namespace ui {
 
 class IGameState;
@@ -46,5 +47,11 @@ private:
     IModifierState& modState_;
 };
 
+// Convenience free function — thin wrapper over MacroEvaluator.
+// Used by command modules (combat_commands, system_commands, target_commands).
+std::string evaluateMacroConditionals(const std::string& rawArg,
+                                      game::GameHandler& gameHandler,
+                                      uint64_t& targetOverride);
+
 } // namespace ui
 } // namespace wowee

include/ui/chat_panel.hpp

@@ -125,9 +125,6 @@ public:
     // UIServices injection (Phase B singleton breaking)
     void setServices(const UIServices& services) { services_ = services; }
 
-    /** Replace $g/$G and $n/$N gender/name placeholders in quest/chat text. */
-    std::string replaceGenderPlaceholders(const std::string& text, game::GameHandler& gameHandler);
-
     // ---- Accessors for command system (Phase 3) ----
     char* getChatInputBuffer() { return chatInputBuffer_; }
     size_t getChatInputBufferSize() const { return sizeof(chatInputBuffer_); }
@@ -203,7 +200,8 @@ private:
 
     // ---- Helpers ----
     void sendChatMessage(game::GameHandler& gameHandler);
-    // getChatTypeName / getChatTypeColor now static in ChatTabManager
+    static int inputTextCallback(ImGuiInputTextCallbackData* data);
+    void detectChannelPrefix(game::GameHandler& gameHandler);
 
     // Cached game handler for input callback (set each frame in render)
     game::GameHandler* cachedGameHandler_ = nullptr;