feat(character): keep and save the tooltip flags (SetTooltipFlag, char@ttip)

The client sends SetTooltipFlag (469: bFlag, then the tooltip,
2 live packets, both tooltip 24) when a tooltip has been shown, and
follows it with SetFlag for the same ID. DLU dropped it and never wrote
char@ttip, so the client's tooltip bits reset on every load.

- SetTooltipFlag message struct and handler: the bit is set or cleared on
  the CharacterComponent exactly as the client does it
  (LWOCharacterComponent::SendMessage 0x00d34330): tooltips above 127 are
  ignored, set = 1 << tooltip, clear = mask ~1 << tooltip (which also
  clears the lower bits), shifts of 64 or more give 0.
- Saved as char@ttip, a 64-bit value (the client reads it with
  GetLongLongValue in LoadFromSaveData 0x00ca4910). Live wrote it on
  every character (226 live charxmls: "0" or "16777216" = tooltip 24).
  Old saves without it load with 0.

Check in game: on a new character, trigger a first-time tooltip (e.g.
the one about an item or a new area), change zones and log out and back
in: the character loads normally and the same tooltip does not come back.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

dGame/dComponents/CharacterComponent.h

@@ -327,6 +327,14 @@ public:
 
 	const std::u16string& GetLastRocketConfig() const { return m_LastRocketConfig; };
 
+	/**
+	 * Sets or clears a tooltip's "seen" bit as the client's SetTooltipFlag does (LWOCharacterComponent::SendMessage
+	 * 0x00d34330): tooltips above 127 are ignored; setting shifts 1 left by the tooltip (nothing at 64 or more);
+	 * clearing masks with ~1 shifted left by the tooltip, which also clears every lower bit. Saved as char@ttip.
+	 */
+	void SetTooltipFlag(int32_t tooltip, bool flag);
+	uint64_t GetTooltipFlags() const { return m_TooltipFlags; }
+
 	uint64_t GetTotalTimePlayed() const { return m_TotalTimePlayed; };
 
 	/**
@@ -364,6 +372,9 @@ private:
 	 */
 	int64_t m_Uscore;
 
+	// The tooltips the player has seen, one bit each (char@ttip)
+	uint64_t m_TooltipFlags{};
+
 	/**
 	 * The lifetime reputation earned by the entity
 	 */